This page lists all "countries" included in WeSIS and their (numeric) codes. Defining a country, political unit or a state member of the international system is challenging. In order to ensure cross-comparability to other major data collections in the social sciences, we rely on the Corrrelates of War project (COW) complemented by the V-Dem project (V-Dem).
COW and V-Dem show a huge overlap in defining entities. For COW, an entity must have "a resonable degree of autonomy". For V-Dem, an entity must be an "effective governance unit". 
Further criteria apply e.g. population size, diplomatic missions, or continuity with a contemporary nation-state. They partly differ regarding the treatment of successor or predecessor states. V-Dem's country codes aim at providing a consistent time series whereas COW usually treats states as "fixed". For example, COW assigns three codes to Korea, North Korea and South Korea; V-Dem subsumes Korea and South Korea under one code. Data in WeSIS can be matched on several IDs and allows for a flexible case selection reflecting user's demands. As a coding standard, data was collected for each separate entity whenever possible.
| State Name | COW State Abbreviation | COW Numeric Code | ISO 3166 Alpha 2 code | ISO 3166 Alpha 3 code | ISO 3166 Numeric code | V-Dem Country Text ID | V-Dem Country ID | V-Dem Historical Names | Wikipedia | 
| Angola | ANG | 540 | AO | AGO | 024 | AGO | 104 | Portuguese Angola [colony, borders fixed and administration extended into the hinterland] (1900–1951); Overseas Province of Angola (1951–1975); Independent state (1975– ) | Angola | 
| Benin | BEN | 434 | BJ | BEN | 204 | BEN | 52 | French Dahomey [colony within French West Africa] (1900–1958); Republic of Dahomey [autonomous] (1958–1960); Republic of Benin [independent state] (1960– ) | Benin | 
| Botswana | BOT | 571 | BW | BWA | 072 | BWA | 68 | Bechuanaland Protectorate (1900–1966); Republic of Botswana [independent state] (1966-) | Botswana | 
| Burkina Faso | BFO | 439 | BF | BFA | 854 | BFA | 54 | Colonial territory of Upper Volta [part of French West Africa][formed from territories previously belonging to Upper Senegal, Niger and Ivory Coast] (1919–1932); Colonial territory of Upper Volta [dissolved][territories administered by Ivory Coast, French Sudan, and Niger] (1932–1947); Colonial territory of Upper Volta [reconstituted][part of the French Union with previous boundaries] (1947); Colonial territory of Upper Volta (1947–1958); Republic of Upper Volta [self-governing within the French Community] (1958–1960); Republic of Upper Volta [independent state] (1960–1984); Burkina Faso (1984– ) | Burkina Faso | 
| Burundi | BUI | 516 | BI | BDI | 108 | BDI | 69 | Part of German East Africa (1900–1916); Ruandi-Urundi (1916–1962); Republic of Burundi [independent state] (1962– ) | Burundi | 
| Cameroon | CAO | 471 | CM | CMR | 120 | CMR | 108 | German colony of Kamerun (1900–1919); Cameroon under dual League of Nations mandates [under France and Britain] (1919–1946); Cameroon [converted to UN trusteeships9 (1946–1960); Republic of Cameroon [French portion] [independent state] (1960); Republic of Cameroon and British Cameroon (1960–1961); Federal Republic of Cameroon [independent state] [Republic of Cameroon merged with southern part of British Cameroons] (1961); Republic of Cameroon (1961–1972); United Republic of Cameroon (1972–1984); Republic of Cameroon (1984- ) | Cameroon | 
| Cape Verde | CAP | 402 | CV | CPV | 132 | CPV | 70 | Colony of Portugal (1900–1951); overseas province of Portugal (1951–1975); Republic of Cape Verde [independent state] (1975– ) | Cape Verde | 
| Central African Republic | CEN | 482 | CF | CAF | 140 | CAF | 71 | Oubangui-Chari established as French administration [also known as Ubangi-Shari] (1903); Oubangui-Chari as part of the French Congo (1903–1906); Oubangui-Chari merged with Chad (1906); Oubangui-Chari as part of the French Congo (1906–1910); Oubangi-Chari-Tchad as part of the French Equatorial Africa [successor of French Congo] (1910–1911); Oubangi-Chari-Tchad [part of French Equatorial Africa] under German occupation in its western part (1911–1914); Oubangi-Chari-Tchad [part of French Equatorial Africa] [reoccupied by France] (1914–1920); Oubangi-Chari [autonomous unit, separated from Tchad] (1920); Oubangi-Chari [part of French Equatorial Africa] (1920–1946); Oubangi-Chari [overseas territory of the French Union] (1946–1958); Central African Republic [selfrule within the French Community] (1958–1960); Central African Republic [independent state] (1960–1976); Central African Empire (1976–1979); Central African Republic (1979–) | Central African Republic | 
| Chad | CHA | 483 | TD | TCD | 148 | TCD | 109 | Territoire Militaire des Pays et Protectorats du Tchad (1900–1910); Oubangi-Chari-Tchad [Territoire Militaire des Pays et Protectorats du Tchad joins French Equatorial Africa] (1910–1914); Oubangi-Chari-Tchad [terrytory’s pacification of present-day state complete] (1914); Oubangi-Chari-Tchad [part of French Equatorial Africa] (1914–1920); Tchad [part of French Equatorial Africa] (1920–1946); Tchad [overseas territory of France] (1946–1958); Chad as a member of the Union of Central African Republics [self-rule within the French Community] (1958–1960); Republic of Chad [independent state] (1960– ) | Chad | 
| Comoros | COM | 581 | KM | COM | 174 | COM | 153 | French Protectorate of the Comoros (1900–1912); Mayotte and Dependencies (1912–1914); Comoros subordinated to Madagascar (1914–1946); Comoros as a French overseas territory (1946–1975); Union of the Comoros [independent state] (1975– ) | Comoros | 
| Congo | CON | 484 | CG | COG | 178 | COG | 112 | Middle Congo (1903–1910); Middle Congo (1903–1910); Middle Congo as part of the French Equatorial Africa (1910–1934); Middle Congo under direct administration of the governor-general of French Equatorial Africa (1934); Middle Congo as part of the French Equatorial Africa (1934–1958); Middle Congo as a member of the newly formed Union of Central African Republics (1958–1958); Congo Republic as a member of the newly formed Union of Central African Republics (1958–1960); Congo Republic [independent state] (1960); Congo Republic (1960–1970); People’s Republic of the Congo (1970–1991); Republic of the Congo (1991– ) | Congo | 
| Democratic Republic of the Congo | DRC | 490 | CD | COD | 180 | COD | 111 | Congo Free State [property of King Leopold of Belgium] (1900–1908); Belgian colony of Belgian Congo (1908–1960); Republic of Congo [independent state] [also known as Congo-Leopoldville] (1960–1965); Democratic Republic of Congo (1965–1971); Republic of Zaire (1971–1997); Democratic Republic of the Congo (1997– ) | Democratic Republic of the Congo | 
| Djibouti | DJI | 522 | DJ | DJI | 262 | DJI | 113 | French colony of French Somaliland (1900–1967); Territoire Francais des Afars et des Issas (1967–1977); Republic of Djibouti [independent state], (1977– ) | Djibouti | 
| Equatorial Guinea | EQG | 411 | GQ | GNQ | 226 | GNQ | 160 | Colony of Rio Muni, Colony of Elobey, Annobon and Corisco, and Island of Bioko [autonomous from one another] [under Spanish rule] (1900–1926); Colony of Spanish Guinea (1926–1959); Provinces of the Spanish Equatorial Region (1959–1963); Equatorial Guinea [autonomous community] (1963–1968); Republic of Equatorial Guinea [independent state] (1968– ) | Equatorial Guinea | 
| Eritrea | ERI | 531 | ER | ERI | 232 | ERI | 115 | Italian colony (1900–1936); Eritrea as a province of Italian East Africa (1936–1941); Eritrea under British occupation [administered under the terms of a UN mandate] (1941–1951); Federation of Ethiopia and Eritrea (1952–1962); Eritrea as a territory within Ethiopia (1962–1993); State of Eritrea [independent state] (1993– ) | Eritrea | 
| Ethiopia | ETH | 530 | ET | ETH | 231 | ETH | 38 | Empire of Ethiopia (1789–1936); Empire of Ethiopia under Italian occupation (1936–1941); Empire of Ethiopia (1941–1974); Socialist Ethiopia (1974–1991); Socialist Ethiopia [transition phase] (1991–1995); Federal Democratic Republic of Ethiopia (1995– ) | Ethiopia | 
| Gabon | GAB | 481 | GA | GAB | 266 | GAB | 116 | Gabon under French sphere of influence (1900–1910); Gabon as part of the French Equatorial Africa (1910–1958); Gabon as a member of the Union of Central African Republics (1958–1960); Gabonese Republic [independent state] (1960– ) | Gabon | 
| Gambia | GAM | 420 | GM | GMB | 270 | GMB | 117 | British Crown Colony of the Gambia (1900–1965); The Gambia [independent state] (1965); The Gambia [republic within the Commonwealth] (1965–1970); Republic of the Gambia (1970– ) | Gambia | 
| Ghana | GHA | 452 | GH | GHA | 288 | GHA | 7 | Gold Coast Colony (1900–1902); Gold Cost Colony [consisting of the coastal regions] (1902–1919); Gold Coast Colony [joined by part of German Togoland] (1919); Gold Coast Colony [conquered territory of Asante, Northern territories protectorates ruled by a single governor] (1919–1946); Gold Coast Colony (1946–1956); Gold Coast Colony [joined by British Togoland and protectorates] (1956); Gold Coast Colony (1956–1957); Republic of Ghana (1957– ) | Ghana | 
| Guinea | GUI | 438 | GN | GIN | 324 | GIN | 63 | French Guinea [part of French West Africa] (1900–1958); Republic of Guinea [independent state] (1958– ) | Guinea | 
| Guinea-Bissau | GNB | 404 | GW | GNB | 624 | GNB | 119 | Colony of Portuguese Guinea (1900–1973); Republic of Guinea Bissau [independent state] (1973– ) | Guinea-Bissau | 
| Ivory Coast | CDI | 437 | CI | CIV | 384 | CIV | 64 | Ivory Coast as a French colony (1900–1904); Ivory Coast [part of French West Africa] (1904–1958); Ivory Coast [member of French Community] (1958–1960); Republic of Cˆote d’Ivoire [independent state] (1960– ) | Ivory Coast | 
| Kenya | KEN | 501 | KE | KEN | 404 | KEN | 40 | East Africa Protectorate (1900–1920); British colony of Kenya (1920–1963); Republic of Kenya [independent state] (1963– ) | Kenya | 
| Lesotho | LES | 570 | LS | LSO | 426 | LSO | 85 | British Protectorate of Basutoland (1900–1966); Kingdom of Lesotho [independent state] (1966– ) | Lesotho | 
| Liberia | LBR | 450 | LR | LBR | 430 | LBR | 86 | Cape Mesurado Colony (1821–1824); Colony of Liberia (1824–1839); Commonwealth of Liberia (1839–1847); Republic of Liberia (1847– ) | Liberia | 
| Madagascar | MAG | 580 | MG | MDG | 450 | MDG | 125 | Kingdom of Imerina (1817–1896); Kingdom of Imerina under French Protectorate (1896–1897); French colony of Madagascar (1897–1958); Malagasy Republic [self-rule within the French Community] (1958–1960); Republic of Madagascar [independent state] (1960– ) | Madagascar | 
| Malawi | MAW | 553 | MW | MWI | 454 | MWI | 87 | British colony of Nyasaland (1900–1953); Federation of Rhodesia and Nyasaland/Central African Federation [consolidated with Rhodesia (North and South)] (1953–1963); British colony of Nyasaland (1963–1964); Republic of Malawi [independent state] (1964– ) | Malawi | 
| Mali | MLI | 432 | ML | MLI | 466 | MLI | 28 | French Sudan/Sudanese Republic (1900–1958); Mali Federation (1958–1960), Republic of Mali (1960– ) | Mali | 
| Mauritania | MAA | 435 | MR | MRT | 478 | MRT | 65 | Mauritania as a French colony (1900–1904); Mauritania as a French colony [boundaries established] (1904–1912); Mauritania as a French colony [fully pacified] (1912); Mauritania as a French colony (1912–1920); Mauritania [member of French West Africa] (1920–1958); Republic of Mauritania [within the French Community]; Islamic Republic of Mauritania [independent state] (1960– ) | Mauritania | 
| Mauritius | MAS | 590 | MU | MUS | 480 | MUS | 180 | Mauritius as a British colony (1900–1968); Republic of Mauritius [independent state] (1968-) | Mauritius | 
| Mozambique | MZM | 541 | MZ | MOZ | 508 | MOZ | 57 | Portuguese colony (1900–1975); Independent state (1975– ) | Mozambique | 
| Namibia | NAM | 565 | NA | NAM | 516 | NAM | 127 | German Southwest Africa (1900–1915); Southwest Africa as a South African colony (1915–1989); Republic of Namibia [independent state] (1990– ) | Namibia | 
| Niger | NIR | 436 | NE | NER | 562 | NER | 60 | Niger under French influence (1900–1922); Niger as a French colony (1922–1958); Niger [self-rule within French Community] (1958–1960); Republic of Niger [independent state] (1960– ) | Niger | 
| Nigeria | NIG | 475 | NG | NGA | 566 | NGA | 45 | Protectorate of Northern Nigeria and the Niger Coast Protectorate/ Protectorate of Southern Nigeria [divided] (1900–1914); Colony and Protectorate of Nigeria [unified] (1914–1960); Federal Republic of Nigeria [independent state] (1960– ) | Nigeria | 
| Rwanda | RWA | 517 | RW | RWA | 646 | RWA | 129 | Part of German East Africa (1900–1916); Ruanda-Urundi (1916–1962); Republic of Rwanda [independent state] (1962– ) | Rwanda | 
| Sao Tome and Principe | STP | 403 | ST | STP | 678 | STP | 196 | Portuguese colony (1900–1975); Democratic Republic of Sao Tome and Principe [independent state] (1975– ) | Sao Tome and Principe | 
| Senegal | SEN | 433 | SN | SEN | 686 | SEN | 31 | French colony of Senegal (1904–1959); Mali Federation (1959–1960); Senegal [independent state] (1960–1982); Senegambia (1982–1989); Republic of Senegal (1989– ) | Senegal | 
| Seychelles | SEY | 591 | SC | SYC | 690 | SYC | 199 | Seychelles as a British crown colony (1903–1976); Republic of the Seychelles [independent state within the Commonwealth] (1976– ) | Seychelles | 
| Sierra Leone | SIE | 451 | SL | SLE | 694 | SLE | 95 | Sierra Leone British colony (1900–1924); Sierra Leone Colony and Protectorate [each with separate legislatures] (1924–1953); Sierra Leone Colony and Protectorate [self-rule] (1953–1961); Republic of Sierra Leone [independent state] (1961– ) | Sierra Leone | 
| Somalia | SOM | 520 | SO | SOM | 706 | SOM | 130 | Somalia under formal Italian control over most of the territory [except British Somaliland] (1900–1910 ); Somalia under effective (more or less) Italian control (1910–1941); Somalia under British occupation (1941–1950); UN Trust Territory of Somalia under Italian administration (1950–1960); Somali Republic [unites Somaliland with the Trust Territory of Somalia] (1960–1969); Somali Democratic Republic (1969–1991); Somali Democratic Republic [civil war] (1991-2004); Transitional Federal Government [civil war] (2004-2012); Federal Government of Somalia [civil war] (2012– ) | Somalia | 
| South Africa | SAF | 560 | ZA | ZAF | 710 | ZAF | 8 | South Africa as a British colony (1900–1910); Union of South Africa (1910–1931); Union of South Africa [independent state] (1931–1961); Union of South Africa [exits the Commonwealth] (1961); Republic of South Africa (1961– ) | South Africa | 
| South Sudan | SSD | 626 | SS | SSD | 728 | SSD | 32 | Sudan (1900-2011); Republic of South Sudan [independent state] (2011– ) | South Sudan | 
| Sudan | SUD | 625 | SD | SDN | 729 | SDN | 33 | British colony under auspices of Anglo-Egyptian condominium (1900–1956); Republic of the Sudan [independent state] (1956–) | Sudan | 
| Swaziland | SWA | 572 | SZ | SWZ | 748 | SWZ | 132 | Swaziland under British protectorate (1900–1968); Kingdom of Swaziland [independent state] (1968– ) | Swaziland | 
| Tanzania | TAZ | 510 | TZ | TZA | 834 | TZA | 47 | Part of German East Africa (1900–1914); Tanganyika and Zanzibar [governed separately] under British League of Nations mandate (1914–1961); Tanganyika [independent state] and Zanzibar under British League of Nations mandate (1961–1964); Tanzania [Zanzibar joins Tanganyika][independent state] (1964– ) | Tanzania | 
| Togo | TOG | 461 | TG | TGO | 768 | TGO | 134 | German protectorate (1900–1905); German colony of Togoland (1905–1916); Togoland under French and British administration [split into two League of Nations mandates] (1916–1946); Togoland under French and British administration [U.N. Trust Territories] (1946–1956); British Togoland joins Gold Coast, French Togoland continues a U.N. Trust Territory (1956–1959); British Togolando [joined with Gold Coast], French Togoland [autonomous republic within the French Union] (1959–1960); Togolese Republic [independent state] (1960– ) | Togo | 
| Uganda | UGA | 500 | UG | UGA | 800 | UGA | 50 | Uganda as a British protectorate (1900–1914); Uganda as a British protectorate [final shape achieved] (1914); Uganda as a British protectorate (1914–1962); Republic of Uganda [independent state within the Commonwealth] (1962– ) | Uganda | 
| Zambia | ZAM | 551 | ZM | ZMB | 894 | ZMB | 61 | North-Eastern Rhodesia and North-Western Rhodesia [British colonies] (1900–1911); Colony of Northern Rhodesia [North-Eastern Rhodesia and North-Western Rhodesia merged] (1911–1923); Colony of Northern Rhodesia [significant self-rule] (1923); Colony of Northern Rhodesia (1923–1953); Colony of Northern Rhodesia [concolidated with Nyasaland and Southern Rhodesia into the Federation of Rhodesia and Nyasaland/Central African Federation] (1953–1963); Colony of Northern Rhodesia (1963–1964); Republic of Zambia [independent state] (1964– ) | Zambia | 
| Zanzibar | ZAN | 511 |  |  |  | ZZB | 236 | Sultanate of Zanzibar [independent] (1856–1885); Sultanate of Zanzibar under German protectorate (1885–1890); Sultanate of Zanzibar under British protectorate (1890–1963); Sultanate of Zanzibar [independent] (1963–1964); People’s Republic of Zanzibar and Pemba (1964); People’s Republic of Zanzibar and Pemba [joins Tanganyika to form Tanzania as a semi-autonomous region] (1964) | Sultanate of Zanzibar People's Republic of Zanzibar | 
| Zimbabwe | ZIM | 552 | ZW | ZWE | 716 | ZWE | 62 | British colony of Southern Rhodesia (1900–1923); British Colony of Southern Rhodesia [self-governing] (1923–1953); British Colony of Southern Rhodesia [consolidated with Nyasaland and Northern Rhodesia into the Federation of Rhodesia and Nyasaland/Central African Federation] (1953–1964); Rhodesia [independent state] (1964); Rhodesia (1964–1979); Zimbabwe Rhodesia (1979–1980); Republic of Zimbabwe (1980– ) | Zimbabwe | 
| State Name | COW State Abbreviation | COW Numeric Code | ISO 3166 Alpha 2 code | ISO 3166 Alpha 3 code | ISO 3166 Numeric code | V-Dem Country Text ID | V-Dem Country ID | V-Dem Historical Names | Wikipedia | 
| Antigua & Barbuda | AAB | 58 | AG | ATG | 028 |  |  | Antigua and Barbuda as a British colony (1900–1981); Antigua and Barbuda [independent state] (1981– ) | Antigua & Barbuda | 
| Argentina | ARG | 160 | AR | ARG | 032 | ARG | 37 | Viceroyalty of Rio de la Plata (1789–1810); United Provinces of Rio de la Plata (1810–1811); United Provinces of Rio de la Plata [Paraguay secedes] (1811); United Provinces of Rio de la Plata (1811–1820); United Provinces of Rio de la Plata [Uruguay annexed to Brazil] (1820–1825); United Provinces of Rio de la Plata [Bolivia secedes] (1825); United Provinces of Rio de la Plata (1825–1831); Argentine Confederation (1831–1852); Argentine Confederation [Buenos Aires secedes] (1852–1861); Argentine Nation/Republic (1861– ) | Argentina | 
| Bahamas | BHM | 31 | BS | BHS | 044 |  |  | Bahamas as a British colony (1900–1973); Commonwealth of the Bahamas [independent state] (1973– ) | Bahamas | 
| Barbados | BAR | 53 | BB | BRB | 052 | BRB | 147 | Barbados as a British colony (1900–1966); Barbados [independent state] (1966– ) | Barbados | 
| Belize | BLZ | 80 | BZ | BLZ | 084 |  |  | British colony of British Honduras (1900–1964); British colony of British Honduras [granted self-government] (1964); British colony of British Honduras (1964–1973); Belize (1973–1981); Belize [independent state] (1981– ) | Belize | 
| Bolivia | BOL | 145 | BO | BOL | 068 | BOL | 25 | Bolivar Republic (1825–1826); Bolivia (1826–1836); Bolivia [part of the Peru-Bolivia Confederation] (1836–1839); Bolivia (1839–1867); Bolivia [incorporates Acre] (1867); Bolivia (1867–1868); Republic of Bolivia (1868–1883); Republic of Bolivia [Pacific coastline lost to Chile] (1883); Republic of Bolivia (1883–1899); Republic of Bolivia [Acre independent] (1899–1900); Republic of Bolivia [Acre returns to Bolivia] (1900–1904); Republic of Bolivia [Acre sold to Brazil] (1904); Republic of Bolivia (1904-2009); Plurinational State of Bolivia (2009– ) | Bolivia | 
| Brazil | BRA | 140 | BR | BRA | 076 | BRA | 19 | Viceroyalty of Brazil (1789–1814); Kingdom of Brazil [part of the United Kingdom of Portugal, Brazil and the Algarves] (1815–1820); Kingdom of Brazil [incorporates Uruguay] (1820–1822); Empire of Brazil (1822); Empire of Brazil [Uruguay incorporated] (1822–1825); Empire of Brazil (1825–1889); Republic of the United States of Brazil (1889–1904); Republic of the United States of Brazil [incorporates Acre] (1904); Republic of the United States of Brazil (1904–1968); Federative Republic of Brazil (1968– ) | Brazil | 
| Canada | CAN | 20 | CA | CAN | 124 | CAN | 66 | United Province of Canada (1841–1867); Dominion of Canada (1867– ) | Canada | 
| Chile | CHL | 155 | CL | CHL | 152 | CHL | 72 | Captaincy General of Chile (1789–1818); Republic of Chile (1818–1883); Republic of Chile [incorporates Bolivian Pacific Coast] (1883); Republic of Chile (1883–1888); Republic of Chile [incorporates Easter Island] (1888); Republic of Chile (1888– ) | Chile | 
| Colombia | COL | 100 | CO | COL | 170 | COL | 15 | Viceroyalty of New Granada (1789–1811); Federated Provinces of New Grenada (1811–1812); United Provinces of New Grenada (1812–1819); Republic of Colombia [Gran Colombia] (1819–1903); Republic of Colombia [Panama secedes] (1903); Repulic of Colombia (1903– ) | Colombia | 
| Costa Rica | COS | 94 | CR | CRI | 188 | CRI | 73 | State of Costa Rica (1838–1844); Free State of Costa Rica (1844–1847); State of Costa Rica (1847–1848); Republic of Costa Rica (1848– ) | Costa Rica | 
| Cuba | CUB | 40 | CU | CUB | 192 | CUB | 155 | Spanish Captaincy-general of Cuba (1789–1898); US colony of Cuba (1898–1902); Republic of Cuba (1902– ) | Cuba | 
| Dominica | DMA | 54 | DM | DMA | 212 |  |  | Dominica as a British colony (1900–1958); West Indies Federation (1958–1962); British colony (1962–1967); Dominica [associated state of the UK with self-determination over domestic policy] (1967–1978); Dominica [independent state] (1978– ) | Dominica | 
| Dominican Republic | DOM | 42 | DO | DOM | 214 | DOM | 114 | Spanish colony of Santo Domingo (1789–1801); Spanish colony of Santo Domingo under Haitian occupation (1801–1802); Colony of Santo Domingo under French administration (1802–1809); Colony of Santo Domingo under Spanish rule (1809–1822); Colony of Santo Domingo [annexed to Haiti] (1822–1844); Dominican Republic [independent state] (1844); Dominican Republic (1844–1861); Spanish Colony of Santo Domingo (1861–1863); Dominican Republic (1863–1916 ); Dominican Republic under US occupation(1916–1924); Dominican Republic (1924–1965); Dominican Republic under US occupation (1965–1966); Dominican Republic (1966– ) | Dominican Republic | 
| Ecuador | ECU | 130 | EC | ECU | 218 | ECU | 75 | State of Ecuador (1830–1832); State of Ecuador [Galapagos Islands annexed] (1832); State of Ecuador (1832–1835);Republic of Ecuador (1835– ) | Ecuador | 
| El Salvador | SAL | 92 | SV | SLV | 222 | SLV | 22 | State of Salvador [nominally part of the Central American Republic] (1838–1840); State of Salvador (1840–1859); Republic of Salvador (1859–1898); Republic of El Salvador (1898– ) | El Salvador | 
| Grenada | GRN | 55 | GD | GRD | 308 |  |  | Grenada as a British colony (1900–1958); British colony under the West Indies Federation (1958–1962); Grenada as a British colony (1962–1967); Grenada [associated state of the UK with selfdetermination over domestic policy] (1967–1974); Grenada [independent state] (1974–1983); Grenada under US occupation (1983); Grenada [independent state] (1983-) | Grenada | 
| Guatemala | GUA | 90 | GT | GTM | 320 | GTM | 78 | Captaincy-general of Guatemala [subordinated to New Spain] (1789–1821); United Provinces of Central America (1821–1822); United Provinces of Central America incorporated into Mexico (1822–1823); United Provinces of Central America (1823–1838); Republic of Guatemala (1838– ) | Guatemala | 
| Guyana | GUY | 110 | GY | GUY | 328 | GUY | 166 | Guyana as a British colony (1900–1966); Guyana [independent state within the Commonwealth] (1966–1970); Co-operative Republic of Guyana (1970– ) | Guyana | 
| Haiti | HAI | 41 | HT | HTI | 332 | HTI | 26 | Colony of Saint-Domingue (1789–1804); Empire of Haiti (1804–1806); Republic of Haiti [South] (1806–1820); Republic of Haiti [incorporates North Haiti] (1820); Republic of Haiti (1820–1822); Republic of Haiti [incorporates Santo Domingo/Dominican Republic] (1822–1844); Republic of Haiti after Dominican Republic secedes (1844–1849); Second Empire of Haiti (1849–1858); Republic of Haiti (1858–1914); Republic of Haiti under US occupation and protectorate (1914–1936); Republic of Haiti (1936– )).[South] (1806-1820) / Republic of Haiti [incorporates Santo-Domingo/Dominican Republic] (1822-1844) / Republic of Haiti after Dominican Republic secedes (1844-1849) / Republic of Haiti under US occupation and protectorate (1914-1936) / Second Empire of Haiti (1849-1858) | Haiti | 
| Honduras | HON | 91 | HN | HND | 340 | HND | 27 | State of Honduras (1838–1865); Republic of Honduras (1865–1907); Republic of Honduras under US occupation or protectorate (1907); Republic of Honduras (1907–1911); Republic of Honduras under US occupation or protectorate (1911–1919); Republic of Honduras (1919–1924); Republic of Honduras under US occupation or protectorate (1924–1925); Republic of Honduras (1925– ) | Honduras | 
| Jamaica | JAM | 51 | JM | JAM | 388 | JAM | 120 | Jamaica as a British colony (1900–1962); Jamaica [independent state] (1962– ) | Jamaica | 
| Mexico | MEX | 70 | MX | MEX | 484 | MEX | 3 | Viceroyalty of New Spain (1789–1821); Mexican Empire (1821–1823); Provisional Government (1823–1824); United States of Mexico (1824–1835); Mexican Republic [Including Texas](1935–1836); Mexican Republic (1835–1846); United Mexican States (1846–1848); United Mexican States [”Mexican cession” territory ceded to the US](1848); United Mexican States (1848–1853); United Mexican States [”Gadsden purchase” territory ceded to the US] (1953); United Mexican States (1853–1863); Second Mexican Empire (1863–1867); United Mexican States (1867– ) | Mexico | 
| Nicaragua | NIC | 93 | NI | NIC | 558 | NIC | 59 | State of Nicaragua (1838–1854); Republic of Nicaragua (1854–1909); Republic of Nicaragua under US Protectorate (1909–1910); Republic of Nicaragua under US occupation (1910); Republic of Nicaragua under US protectorate (1910–1912); Republic of Nicaragua under US occupation (1912–1913); Republic of Nicaragua under US Protectorate (1913–1920); Republic of Nicaragua (1920-) | Nicaragua | 
| Panama | PAN | 95 | PA | PAN | 591 | PAN | 92 | Province of Colombia (1900–1903); Republic of Panama [independent state though under influence of United States, which had special rights to the canal zone] (1903–1979); Republic of Panama [independent state] (1979–1989); Republic of Panama under US incursion (1989); Republic of Panama [independent state] (1989– ) | Panama | 
| Paraguay | PAR | 150 | PY | PRY | 600 | PRY | 189 | Intendancy of Paraguay [part of Rio de la Plata] (1789–1813); Republic of Paraguay (1813–1869); Republic of Paraguay under Argentinian and Brazilian occupation (1869–1876); Republic of Paraguay (1876– ) | Paraguay | 
| Peru | PER | 135 | PE | PER | 604 | PER | 30 | Viceroyalty of Peru (1789–1821); State of Peru (1821–1822); Peruvian Republic (1822–1836); part of the Peru-Bolivia Confederation (1836–1838); Republic of Peru (1838–1881); Republic of Peru under Chilean occupation (1881–1883); Republic of Peru (1883– ) | Peru | 
| St. Kitts and Nevis | SKN | 60 | KN | KNA | 659 |  |  | Saint Kitts and Nevis as a British colony (1900–1967); Saint Kitts and Nevis [associated state of the UK with self-determination over domestic policy] (1967–1971); Saint Kitts and Nevis [Anguilla separates] (1971); Saint Kitts and Nevis (1971–1983); Saint Kitts and Nevis [independent state] (1983– ) | Saint Kitts and Nevis | 
| St. Lucia | SLU | 56 | LC | LCA | 662 |  |  | Saint Lucia as a British colony (1900–1958); West Indies Federation (1958–1962); Saint Lucia as a British colony (1962–1967); Saint Lucia [associated state of the UK with self determination over domestic policy] (1967–1979); Saint Lucia [independent state] (1979– ) | Saint Lucia | 
| St. Vincent and the Grenadines | SVG | 57 | VC | VCT | 670 |  |  | Saint Vincent and the Grenadines as a British colony (1900–1958); West Indies Federation (1958–1962); Saint Vincent and the Grenadines as a British colony (1962–1969); Saint Vincent and the Grenadines [associated state of the UK with self-determination over domestic policy] (1969–1979); Saint Vincent and the Grenadines [independent state] (1979– ) | St. Vincent and the Grenadines | 
| Suriname | SUR | 115 | SR | SUR | 740 | SUR | 4 | Suriname as a Dutch colony (1900–1941); Suriname as a Dutch colony under US occupation (1941); Suriname as a Dutch colony (1941–1954); Suriname [Dutch colony with self-rule] (1954–1975); Republic of Suriname [independent state] (1975– ) | Suriname | 
| Trinidad and Tobago | TRI | 52 | TT | TTO | 780 | TTO | 135 | Trinidad and Tobago as a British colony (1900–1958); West Indies Federation (1958–1962); Trinidad and Tobago [independent state, member of the Commonwealth] (1962–1978); Republic of Trinidad and Tobago [independent state, member of the Commonwealth] (1978– ) | Trinidad and Tobago | 
| United States of America | USA | 2 | US | USA | 840 | USA | 20 | United States of America (1789–1803); United States of America [incorporates the Louisiana Territory] (1803); United States of America (1803–1821); United States of America [incorporates Florida] (1821); United States of America (1821–1846); United States of America [incorporates Texas and Oregon Territory] (1846); United States of America (1846–1848); United States of America [Mexican Cession lands] (1848); United States of America (1848–1853); United States of America [Gadsden Purchase] (1853); United States of America (1853–1867); United States of America [incorporates Alaska] (1867); United States of America (1867–1898); United States of America [incorporates Hawaii] (1898); United States of America (1898– ) | United States of America | 
| Uruguay | URU | 165 | UY | URY | 858 | URY | 102 | Provincia Oriental del Rio de la Plata [formally under Argentine Confederation] (1825–1828); State of Montevideo (1828–1829); Eastern State of Uruguay (1829); Oriental Republic of Uruguay (1829– ) | Uruguay | 
| Venezuela | VEN | 101 | VE | VEN | 862 | VEN | 51 | Captaincy General of Venezuela (1789–1811); United States of Venezuela (1811–1812); Captaincy General of Venezuela (1812–1813); United States of Venezuela (1813–1814); Captaincy General of Venezuela (1814–1816); Republic of Venezuela (1816–1819); Republic of Venezuela [incorporated into Gran Colombia] (1819–1830); Republic of Venezuela (1830–1864); United States of Venezuela (1864–1953); Republic of Venezuela (1953-2000); Bolivarian Republic of Venezuela (2000– ) | Venezuela | 
| State Name | COW State Abbreviation | COW Numeric Code | ISO 3166 Alpha 2 code | ISO 3166 Alpha 3 code | ISO 3166 Numeric code | V-Dem Country Text ID | V-Dem Country ID | V-Dem Historical Names | Wikipedia | 
| Afghanistan | AFG | 700 | AF | AFG | 004 | AFG | 36 | Emirate of Afghanistan (1789–1839); Emirate of Afghanistan under British protectorate and occupation (1839–1842); Emirate of Afghanistan (1842–1879); Emirate of Afghanistan under British occupation (1879); Emirate of Afghanistan under British occupation and sphere of influence(1879–1880); Emirate of Afghanistan under British sphere of influence (1880–1919); Emirate of Afghanistan (1919–1926); Kingdom of Afghanistan (1926–1973); Republic of Afghanistan (1973–1978); Democratic Republic of Afghanistan (1978–1979); Democratic Republic of Afghanistan under Russian occupation (1979–1989); Democratic Republic of Afghanistan (1989–1992); Islamic State of Afghanistan (1992–1996); Islamic Emirate of Afghanistan (1996-2001); Afghan Transitional Administration under US occupation (2001-2004); Islamic Republic of Afghanistan under US occupation (2004-2014); Islamic republic of Afghanistan (2014– ) | Afghanistan | 
| Armenia | ARM | 371 | AM | ARM | 051 | ARM | 105 | Ottoman Empire (1900–1918); Transcaucasian Democratic Federative Republic (1918); Democratic Republic of Armenia, including Eastern Armenia (1918–1922); part of Transcaucasian Soviet Federative Socialist Republic (1922–1936); Armenia Soviet Socialist Republic (1936–1991); Republic of Armenia [independent state] (1991– ) | Armenia | 
| Azerbaijan | AZE | 373 | AZ | AZE | 031 | AZE | 106 | / Azerbaijan Soviet Socialist Republic (1936-1991) / Republic of Azerbaijan [independent state] (1991- ) | Azerbaijan | 
| Bangladesh | BNG | 771 | BD | BGD | 050 | BGD | 24 | British India (1900–1947); Pakistan (1947–1971); People’s Republic of Bangladesh [independent state] (1971– ) | Bangladesh | 
| Bhutan | BHU | 760 | BT | BTN | 064 | BTN | 53 | Princely state of British India (1910–1949); Kingdom of Bhutan as a quasi-protectorate of India [foreign policy coordinated with India] (1949-2007); Kingdom of Bhutan (2007– ) | Bhutan | 
| Brunei | BRU | 835 | BN | BRN | 096 |  |  | Brunei under British protectorate (1900–1941); Brunei under Japanese occupation (1941–1945); Brunei under British protectorate (1945–1984); State of Brunei Darussalam [independent state] (1984– ) | Brunei | 
| Cambodia | CAM | 811 | KH | KHM | 116 | KHM | 55 | Kingdom of Cambodia under French protectorate [part of French Indochina] (1900–1941); Kingdom of Cambodia under Japanese occupation (1941–1945); Kingdom of Cambodia (1945–1953); Kingdom of Cambodia [independent state] (1953); Kingdom of Cambodia (1953–1975); Democratic Kampuchea (1975–1978); Democratic Kampuchea under Vietnamese occupation (1978–1979); People’s Republic of Kampuchea (1979);People’s Republic of Kampuchea under Vietnamese occupation (1979–1990); Kingdom of Cambodia (1990); Kingdom of Cambodia under Vietnamese occupation (1990–1993); Kingdom of Cambodia (1993– ) | Cambodia | 
| China | CHN | 710 | CN | CHN | 156 | CHN | 110 | Great Qing Empire (1789–1900); Great Qing Empire with Tientsin and Beijing under Austro-Hungarian, British, German, French, Italian, Japanese, Russian and US occupation (1900–1901); Great Qing Empire (1901–1911); Republic of China [Warlord China] (1911–1928); Republic of China [Nationalist China] (1928–1949); People’s Republic of China (1949– ) | China | 
| East Timor | ETM | 860 | TL | TLS | 626 | TLS | 74 | Portuguese colony of East Timor (1900–1975); Democratic Republic of Timor-Leste [unilateral declaration of independent state by FRETILIN (Revolutionary Front for an Independent East Timor)] (1975); Democratic Republic of Timor-Leste under Indonesian occupation (1975–1999); Democratic Republic of Timor-Leste under UN administration (1999-2002); Democratic Republic of Timor-Leste [independent state] (2002– ) | East Timor | 
| Georgia | GRG | 372 | GE | GEO | 268 | GEO | 118 | Russian Empire (1900–1917); Transcaucasian Democratic Federative Republic (1917–1918); Democratic Republic of Georgia (1918–1921); Democratic Republic of Georgia under Soviet rule (1921–1922); part of Transcaucasian Soviet Federative Socialist Republic (1922–1936); Georgia Soviet Socialist Republic (1936–1991); Republic of Georgia [independent state] (1991– ) | Georgia | 
| Hong Kong |  |  | HK | HKG | 344 | HKG | 167 | Hong Kong as a British colony (1900–1941); Hong Kong under Japanese occupation (1941–1945); Hong Kong as a British colony (1945–1997); Hong Kong as a special administrative region of China (1997– ). | Hong Kong | 
| India | IND | 750 | IN | IND | 356 | IND | 39 | British India [territories directly administered by the British East India Company] (1789–1858); Empire of India [colony under Britain] (1858–1947); Republic of India [independent state] (1947– ) | India | 
| Indonesia | INS | 850 | ID | IDN | 360 | IDN | 56 | Dutch East Indies [under Dutch East India Company] (1789–1801); Dutch East Indies Colony (1801–1811); Dutch East Indies Colony under British occupation (1811–1816); Dutch East Indies (1816–1942); Dutch East Indies under Japanese occupation (1942–1945); Dutch East Indies [independent state] (1945); Dutch East Indies (1945–1949); Republic of Indonesia [independence recognized by the Netherlands] (1949); Republic of Indonesia (1949–1963); Republic of Indonesia [incorporates West New Guinea] (1963); Republic of Indonesia (1963– ) | Indonesia | 
| Japan | JPN | 740 | JP | JPN | 392 | JPN | 9 | Tokugawa Japan (1789–1868); Empire of Japan (1868–1945); Empire of Japan under US occupation (1945–1947); State of Japan (1947); State of Japan under US occupation (1947–1952); State of Japan (1952– ) | Japan | 
| Kazakhstan | KZK | 705 | KZ | KAZ | 398 | KAZ | 121 | Russian Empire (1900–1917); Kazakh Soviet Socialist Republic under Soviet rule (1917–1991); Republic of Kazakhstan [independent state] (1991– ) | Kazakhstan | 
| Korea | KOR | 730 |  |  |  | KOR | 42 | Kingdom of Great Joseon (1789–1897); Great Korean Empire (1897–1905); Korea as a Japanese protectorate (1905–1910); Korea under Japanese occupation (1910–1945); Korea under US occupation (1945–1948); Republic of Korea (1948– ) | Korea | 
| Kyrgyzstan | KYR | 703 | KG | KGZ | 417 | KGZ | 122 | Russian Empire (1900–1917); Kirghiz Soviet Socialist Republic under Soviet rule (1917–1991); Kyrgyz Republic [independent state] (1991– ) | Kyrgyzstan | 
| Laos | LAO | 812 | LA | LAO | 418 | LAO | 123 | Laos under French protectorate [part of French Indochina] (1900–1945); Laos under Japanese occupation (1945); Laos under French protectorate (1945–1950); Laos [self-rule from France as an associated state within the French Union] (1950–1953); Kingdom of Laos [independent state] (1953–1975); Lao People’s Democratic Republic (1975– ) | Laos | 
| Macau |  |  | MO | MAC | 446 |  | 175 | Macau as a Portuguese colony (1900–1999); Macau as a special administrative region of China (1999– ). | Macau | 
| Malaysia | MAL | 820 | MY | MYS | 458 | MYS | 177 | Federated Malay States [ruled directly by Britain] and Unfederated Malay States [under British influence] (1900–1942); Federated Malay States and Unfederated Malay States under Japanese occupation (1942–1945); Malayan Union/Federation of Malaya (1945–1957); Malayan Union [independent state] (1957) Federation of Malaysia (1957–1963); Malaysia (1963– ) | Malaysia | 
| Maldives | MAD | 781 | MV | MDV | 462 | MDV | 88 | Maldive Islands as a British protectorate (1900–1965); Republic of Maldives [independent state] (1965– ) | Maldives | 
| Mongolia | MON | 712 | MN | MNG | 496 | MNG | 89 | Bogd Khaan State [independent state] (1911); Bogd Khaan State (1911–1919); Bogd Khaan State under Chinese occupation (1919–1921); Bogd Khaan State (1921–1924); Mongolian People’s Republic [declared] (1924); Mongolian People’s Republic (1924–1946); Mongolian People’s Republic [independence recognized by China] (1946); Mongolian People’s Republic (1946–1992); Mongolia (1992– ) | Mongolia | 
| Myanmar | MYA | 775 | MM | MMR | 104 | MMR | 10 | Kingdom of Burma [under Konbaung Dynasty] (1789–1824); Kingdom of Burma [Lower Burma annexed by Britain] (1824); Kingdom of Burma (Upper Burma) [under Konbaung Dynasty] (1824–1885); Burma [Upper and Lower Burma united, part/province British India, i.e. British colony] (1885–1942); Burma under Japanese occupation (1942–1945); Burma (1945–1948); Republic of the Union of Myanmar [independent state] (1948– ) | Myanmar | 
| Nepal | NEP | 790 | NP | NPL | 524 | NPL | 58 | Kingdom of Nepal (1789–1818); Kingdom of Nepal under British protectorate [de facto] (1818–1947); Kingdom of Nepal (1947-2008); Federal Democratic Republic of Nepal (2008– ) | Nepal | 
| North Korea | PRK | 731 | KP | PRK | 408 | PRK | 41 | North Korea under Soviet occupation (1945–1948); Democratic People’s Republic of Korea (1948– ) | North Korea | 
| Pakistan | PAK | 770 | PK | PAK | 586 | PAK | 29 | British India (1900–1947); Dominion of Pakistan [independent state] (1947–1956); Islamic Republic of Pakistan [independent state] (1956– ) | Pakistan | 
| Philippines | PHI | 840 | PH | PHL | 608 | PHL | 46 | Philippines under US protectorate (1900–1935); Phillippines within US commonwealth (1935–1942); Philippines under Japanese occupation (1942–1944); Phillippines within US commonwealth (1944–1946); Republic of the Philippines [independent state] (1946– ) | Philippines | 
| Republic of Vietnam | RVN | 817 | VD | VDR | 868 | VDR | 35 | Dai Viet Quoc (1802–1804); Viet Nam Quoc (1804–1839); Dai Nam Quoc (1839–1862); Dai Nam Quoc [Cochinchina ceded to France] (1862); Dai Nam Quoc (1862–1874); Dai Nam Quoc and French Protectorate of Tonkin (1874–1882); French protectorates of Annam and Tonkin (1882–1887); part of French Indochina [including Tonkin, Annam, and Cochinchina (but not Cambodia, Laos, or Kouang-Tcheou-Wan)] (1887–1945); French Indochina under Japanese occupation (1945); French Indochina (1945–1949); State of Vietnam (1949–1955); Republic of Vietnam (also known as South Vietnam) (1955–1975) | Republic of Vietnam | 
| Singapore | SIN | 830 | SG | SGP | 702 | SGP | 200 | Straits Settlements (1867–1942); British Crown Colony of Singapore under Japanese occupation (1942–1945); British Crown Colony of Singapore (1945–1959); British Crown Colony of Singapore [self-governing member of British Commonwealth] (1959–1963); part of Federation of Malaysia (1963–1965); Republic of Singapore [independent state] (1965– ) | Singapore | 
| South Korea | ROK | 732 | KR | KOR | 410 | KOR | 42 | Kingdom of Great Joseon (1789–1897); Great Korean Empire (1897–1905); Korea as a Japanese protectorate (1905–1910); Korea under Japanese occupation (1910–1945); Korea under US occupation (1945–1948); Republic of Korea (1948– ) | South Korea | 
| Sri Lanka | SRI | 780 | LK | LKA | 144 | LKA | 131 | British Colony of Ceylon (1900–1948); Dominion of Ceylon [independent state] (1948–1972); Republic of Sri Lanka (1972–1978); Democratic Socialist Republic of Sri Lanka (1978– ) | Sri Lanka | 
| Taiwan | TAW | 713 | TW | TWN | 158 | TWN | 48 | Taiwan under Japanese occupation (1900–1945); Republic of China [headquartered in the mainland] (1945–1949); Republic of China [headquartered in Taiwan] (1949– ) | Taiwan | 
| Tajikistan | TAJ | 702 | TJ | TJK | 762 | TJK | 133 | Russian Empire (1900–1917); Tajik Soviet Socialist Republic under Soviet rule (1917–1991); Republic of Tajikistan [independent state] (1991– ) | Tajikistan | 
| Thailand | THI | 800 | TH | THA | 764 | THA | 49 | Kingdom of Krung Thep (1789–1856); Kingdom of Siam (1856–1907); Kingdom of Siam [cedes Battambang, Siem Reap, and Srisophon to French Indochina (Cambodia) and west-bank Champasak and Xainyaburi to France (Laos)] (1907); Kingdom of Siam (1907–1909); Kingdom of Siam [cedes Perlis, Kedah, Kelantan and Terengganu to Britain] (1909); Kingdom of Siam (1909–1939); Kingdom of Thailand (1939–1945); Siam (1945–1949); Kingdom of Thailand (1949– ) | Thailand | 
| Turkmenistan | TKM | 701 | TM | TKM | 795 | TKM | 136 | Russian Empire (1900–1917); Turkmen Soviet Socialist Republic under Soviet rule (1917–1991); Turkmenistan [independent state] (1991– ) | Turkmenistan | 
| Uzbekistan | UZB | 704 | UZ | UZB | 860 | UZB | 140 | Emirate of Bukhara (1789–1873); Emirate of Bukhara as a Russian protectorate (1873–1920); Bukharan People’s Soviet Republic [Soviet state] (1920–1924); divided between Uzbek S.S.R and Turkmen S.S.R, within the Soviet Union (1924–1990); State sovereignty (1990–1991); Republic of Uzbekistan [independent state] (1991– ) | Uzbekistan | 
| Vietnam | DRV | 816 | VN | VNM | 704 | VNM | 34 | Democratic Republic of Vietnam (i.e. North Vietnam) [declared] (1945); Democratic Republic of Vietnam (1945–1949); Democratic Republic of Vietnam [independent state] (1949– ) | Vietnam | 
| State Name | COW State Abbreviation | COW Numeric Code | ISO 3166 Alpha 2 code | ISO 3166 Alpha 3 code | ISO 3166 Numeric code | V-Dem Country Text ID | V-Dem Country ID | V-Dem Historical Names | Wikipedia | 
| Albania | ALB | 339 | AL | ALB | 008 | ALB | 12 | Ottoman Empire (1900–1912); Proclaimed independent state (1912–1914); Principality of Albania [independent state] (1914), Principality of Albania under Austro-Hungarian occupation (1914–1916); Principality of Albania under Austro-Hungarian and French occupation (1916–1918); Principality of Albania under French occupation (1918–1920); Principality of Albania (1920–1925); Albanian Republic (1925–1928); Albanian Kingdom (1928–1939); Albanian Kingdom under Italian occupation (1939–1943); Albanian Kingdom under German occupation (1943–1944); People’s Republic of Albania (1944–1976); People’s Socialist Republic of Albania (1976–1991); Republic of Albania (1991– ) | Albania | 
| Andorra | AND | 232 | AD | AND | 020 |  |  |  | Andorra | 
| Austria | AUS | 305 | AT | AUT | 040 | AUT | 144 | Austrian hereditary lands (1789–1867); Austrian ”half” of the Habsburg Empire - Cisleithania (1867–1918); Republic of German-Austria (1918–1919); Republic of Austria (1919–1938); German state of Ostmark (1938–1939); Ostmark as an integral part of Third Reich [dissolved into Reichsgaue] (1939–1945); Republic of Austria under Allied occupation (1945–1955); Republic of Austria (1955– ) | Austria | 
| Austria-Hungary | AUH | 300 |  |  |  | AUT | 144 | Hungary/Austro-Hungarian Empire (1900–1918) | Austria-Hungary | 
| Baden | BAD | 267 |  |  |  | BDN | 349 | Margraviate of Baden (1789–1803); Electorate of Baden (1803–1806); Grand Duchy of Baden (1806–1871) | Baden | 
| Bavaria | BAV | 245 |  |  |  | BVR | 350 | Electorate of Bavaria (1789–1803); Electorate of Bavaria [incorporates Palatinate] (1803); Electorate of Bavaria (1803–1806); Kingdom of Bavaria (1806–1871) | Bavaria | 
| Belarus | BLR | 370 | BY | BLR | 112 | BLR | 107 | Russian Empire (1900–1918); German Empire (1918); Belarusian People’s Republic (1918– 1921); Poland [western part of the country] and Byelorussian Soviet Socialist Republic [eastern part of the country] (1921–1939); Byelorussian Soviet Socialist Republic (1939–1941); Byelorussian Soviet Socialist Republic under German occupation (1941–1944); Byelorussian Soviet Socialist Republic (1944–1991); Republic of Belarus [independent state] (1991– ) | Belarus | 
| Belgium | BEL | 211 | BE | BEL | 056 | BEL | 148 | Austrian Netherlands (1789–1795); Austrian Netherlands annexed by France (1795–1814); Belgian Provinces under Allied administration (1814–1815); Belgian Provinces incorporated into the Kingdom of the Netherlands (1815–1830); Kingdom of Belgium (1830–1914); Kingdom of Belgium under German occupation (1914–1918); Kingdom of Belgium (1918–1940); Kingdom of Belgium under German occupation (1940–1944); Kingdom of Belgium (1944– ) | Belgium | 
| Bosnia and Herzegovina | BOS | 346 | BA | BIH | 070 | BIH | 150 | Ottoman Empire (1900–1907); Austria/Austro-Hungarian Empire [ruled directly by Vienna but not part of either Austria or Hungary] (1907–1918); Kingdom of Yugoslavia (1918–1941); Kingdom of Yugoslavia under German and Croat occupation (1941–1945); Socialist Federal Republic of Yugoslavia (1945–1992); Republic of Bosnia and Herzegovina (1992); Republic of Bosnia Herzegovina on war for independence (1992–1995); Republic of Bosnia and Herzegovina [independent state though not recognized by all countries] (1995– ) | Bosnia and Herzegovina | 
| Bulgaria | BUL | 355 | BG | BGR | 100 | BGR | 152 | Danube Vilayet under Russian occupation (1877–1878); Principality of Bulgaria (1878–1885); Principality of Bulgaria [incorporates Eastern Rumelia] (1885); Principality of Bulgaria (1885–1908); Kingdom of Bulgaria (1908–1913); Kingdom of Bulgaria [without southern Dobruja] [incorporates Western Thrace] (1913–1916); Kingdom of Bulgaria [incorporates southern Dobruja] (1916–1918); Kingdom of Bulgaria [incorporates northern Dobruja] (1918–1919); Kingdom of Bulgaria (1919–1946); Bulgarian People’s Republic (1946–1990); Republic of Bulgaria (1990– ) | Bulgaria | 
| Croatia | CRO | 344 | HR | HRV | 191 | HRV | 154 | Hungary/Austro-Hungarian Empire (1900–1918); Kingdom of Serbs, Croats, and Slovenes/Kingdom of Yugoslavia (1918–1941); formally independent state of Croatia [actually a Nazi puppet state, with German occupation] (1941–1945); Socialist Federal Republic of Yugoslavia (1945–1991); Republic of Croatia (1991); Republic of Croatia on war for independence (1991–1995); Republic of Croatia [independent state] (1995– ) | Croatia | 
| Cyprus | CYP | 352 | CY | CYP | 196 | CYP | 156 | Ottoman Empire [not ruled directly] under British sphere of influence (1900–1918); Cyprus under British sphere of influence (1918–1925); Cyprus as a British crown colony (1925–1960); Republic of Cyprus [independent state] (1960–1974); Republic of Cyprus [northern part occupied by Turkey] (1974– ) | Cyprus | 
| Czech Republic | CZR | 316 | CZ | CZE | 203 | CZE | 157 | Hungary/Austro-Hungarian Empire (1900–1918); Czechoslovakia (1918–1939); Czechoslovakia under German occupation (1939–1945); Czechoslovakia (1945–1948); Czechoslovakia Socialist Republic as part of Soviet bloc (1948–1989); Czechoslovakia (1989–1990); Czecho-Slovakia (1990–1992); Czech Republic (1992– ) | Czech Republic | 
| Czechoslovakia | CZE | 315 | CS | CSK | 200 | CZE | 157 | Hungary/Austro-Hungarian Empire (1900–1918); Czechoslovakia (1918–1939); Czechoslovakia under German occupation (1939–1945); Czechoslovakia (1945–1948); Czechoslovakia Socialist Republic as part of Soviet bloc (1948–1989); Czechoslovakia (1989–1990) | Czechoslovakia | 
| Denmark | DEN | 390 | DK | DNK | 208 | DNK | 158 | Kingdom of Denmark-Norway (1789–1814); Norway is ceded to Sweden (1814); Kingdom of Denmark (1815–1920); Kingdom of Denmark incorporates northern Schleswig (1920); Kingdom of Denmark (1920– ) | Denmark | 
| Estonia | EST | 366 | EE | EST | 233 | EST | 161 | Russian Empire (1900–1918); Estonian War of Independence [changing territorial control] (1918–1920); Russian Empire (1900–1918); Republic of Estonia [independent state] (1920–1940); Estonian Soviet Socialist Republic (1940–1941); Estonian Soviet Socialist Republic under German occupation (1941–1944); Estonian Soviet Socialist Republic (1944–1991); Republic of Estonia [independent state] (1991– ) | Estonia | 
| Finland | FIN | 375 | FI | FIN | 246 | FIN | 163 | Part of the Kingdom of Sweden (1789–1809); Grand Duchy of Finland [autonomous] [personal union with Russia] (1809–1917); Finnish State (1917–1918); Kingdom of Finland (1918–1919); Republic of Finland (1919– ) | Finland | 
| France | FRN | 220 | FR | FRA | 250 | FRA | 76 | Kingdom of France (1789–1792); French First Republic (1792–1804); French Empire (1804– 1814; 1815); Kingdom of France (1815–1848); French Second Republic (1848–1852); French Empire (1852–1870); French Third Republic (1870–1940); French State [”Vichy regime”] (1940–1944); French Third Republic (1944–1947); French Fourth Republic (1947–1958); French Fifth Republic (1958– ) | France | 
| German Democratic Republic | GDR | 265 | DD | DDR | 278 | DDR | 137 | German empire (1900–1918); Weimar Republic (1918–1933); Third Reich (1933–1945); Third Reich under Russian occupation (1945–1949); German Democratic Republic (1949–1990); German Democratic Republic reunited with Federal Republic of Germany (1990) | German Democratic Republic | 
| German Federal Republic | GFR | 260 | DE | DEU | 276 | DEU | 77 | Kingdom of Prussia (1789–1812); Kingdom of Prussia under French occupation (1812–1813); Kingdom of Prussia (1813–1867); North German Confederation (1867–1871); German Empire (1871–1918); Weimar Republic (1918–1933); Third Reich (1933–1945); Third Reich under Allied occupation (1945–1949); Federal Republic of Germany (1949– ) | German Federal Republic | 
| Germany | GMY | 255 |  |  |  | DEU | 77 | Kingdom of Prussia (1789–1812); Kingdom of Prussia under French occupation (1812–1813); Kingdom of Prussia (1813–1867); North German Confederation (1867–1871); German Empire (1871–1918); Weimar Republic (1918–1933); Third Reich (1933–1945); Third Reich under Allied occupation (1945–1949); Federal Republic of Germany (1949– ) | Germany | 
| Greece | GRC | 350 | GR | GRC | 300 | GRC | 164 | Greece (1822–1827); Hellenic State (1827–1833); Kingdom of Greece (1833–1864); Kingdom of Greece [incorporates Ionian Islands] (1864); Kingdom of Greece (1864–1881); Kingdom of Greece [incorporates Thessaly] (1881); Kingdom of Greece (1881–1913); Kingdom of Greece [incorporates Crete, Macedonia and Epirus] (1913); Kingdom of Greece (1913–1914); Kingdom of Greece [incorporates Aegean Islands except for Rhodes and Dodecanese] (1914); Kingdom of Greece (1914–1919); Kingdom of Greece [incorporates Smyrna] (1919–1922); Kingdom of Greece (1922–1924);Second Hellenic Republic (Greek Republic) (1924–1935); Kingdom of Greece (1935–1941); Greek State under Axis powers occupation (1941–1944); Kingdom of Greece [restored] (1944–1973); Third Hellenic Republic (Greek Republic) (1973– ) | Greece | 
| Hanover | HAN | 240 |  |  |  | HVR | 357 | Electorate of Hanover (1789–1803); Electorate of Hanover under French occupation (1803–1805); Electorate of Hanover under Prussian occupation (1805–1806); Electorate of Hanover under French occupation (1806–1810) Electorate of Hanover incorporated into Kingdom of Westphalia (1810–1813); Electorate of Hanover (1813–1814); Kingdom of Hanover (1814–1866); annexed by Prussia (1866–1867); part of North German Confederation (1867–1871) | Hanover | 
| Hesse Electoral | HSE | 273 |  |  |  | HKS | 358 | Landgraviate of Hesse-Kassel (1789–1803); Electorate of Hesse-Kassel (1803–1806); Electorate of Hesse-Kassel under French Occupation (1806–1807); Kingdom of Westphalia (1807–1810); departments of Elbe-Inf´erieure, Nord, Weser, and part of Aller are annexed to France (1810); Kingdom of Westphalia (1810–1813); Kingdom of Westphalia [dissolved] (1813); Electorate of Hesse-Kassel (1813–1866); Electorate of Hesse-Kassel incorporated into Prussia (1866–1867); Part of North German Confederation (1867–1871) | Hesse Electoral | 
| Hesse Grand Ducal | HSG | 275 |  |  |  | HDM | 359 | Landgraviate of Hesse-Darmstadt (1789–1806); Grand Duchy of Hesse-Darmstadt (1806–1867); Grand Duchy of Hesse-Darmstadt as part of North German Confederation (1867–1871) | Hesse Grand Ducal | 
| Hungary | HUN | 310 | HU | HUN | 348 | HUN | 210 | Kingdom of Hungary as an Austrian crownland (1789–1867); Hungarian ”half” of the Habsburg Empire [Transleithania] (1867–1918); Hungarian Democratic Republic (1918); Hungarian Soviet Republic (1918–1919); Hungarian Soviet Republic under Romanian occupation (1919–1920); Kingdom of Hungary (1920–1944); Kingdom of Hungary under German occupation (1944–1945); Kingdom of Hungary (1945–1946); Second Hungarian People Republic under Soviet guidance (1946–1989); Republic of Hungary [independent from Russian influence] (1989-2011); Hungary (2011– ) | Hungary | 
| Iceland | ICE | 395 | IS | ISL | 352 | ISL | 168 | Kingdom of Denmark (1900–1904); autonomous within Kingdom of Denmark (1904–18); Kingdom of Iceland [independent state] [personal union with Denmark] (1918–1940); Kingdom of Iceland under Allied occupation (1940–1944); Republic of Iceland (1944– ) | Iceland | 
| Ireland | IRE | 205 | IE | IRL | 372 | IRL | 81 | Part of the United Kingdom (1900–1919); Ireland [independence declared] (1919); Ireland as part of the United Kingdom (1919–1923); Ireland [independence recognized] (1923– ) | Ireland | 
| Italy | ITA | 325 | IT | ITA | 380 | ITA | 82 | Kingdom of Italy (1861–1866); Kingdom of Italy [incorporates Venice] (1866); Kingdom of Italy (1866–1870); Kingdom of Italy [incorporates Papal States] (1870); Kingdom of Italy (1870–1918); Kingdom of Italy [incorporates Tyrol and Triste] (1918); Kingdom of Italy (1918–1946); Italian Republic (1946– ) | Italy | 
| Kosovo | KOS | 347 | XK | XKX |  | XKX | 43 | Ottoman Empire (1900–1912); province of Serbia (1912–1918); Kingdom of Yugoslavia (1918–1941); Kingdom of Yugoslavia under Italian occupation (1941–1943); Kingdom of Yugoslavia under Italian and German occupation (1943–1944); Socialist Federal Republic of Yugoslavia (1944–1992); State Union of Serbia and Montenegro (1992–1999); Kosovo autonomous region under UN administration (1999-2008); Republic of Kosovo [self-declared independent state under European Union supervision] (2008– ) | Kosovo | 
| Latvia | LAT | 367 | LV | LVA | 428 | LVA | 84 | Russian Empire (1900–1918); Republic of Latvia [independence declared] (1918–1920); Republic of Latvia after Russian and German forces were repelled (1920); Republic of Latvia [independent state] (1920–1940); Latvian Soviet Socialist Republic (1940–1941); Latvian Soviet Socialist Republic under German occupation (1941–1944); Latvian Soviet Socialist Republic (1944–1991); Republic of Latvia [independent state] (1991– ) | Latvia | 
| Liechtenstein | LIE | 223 | LI | LIE | 438 |  |  |  | Liechtenstein | 
| Lithuania | LIT | 368 | LT | LTU | 440 | LTU | 173 | Russian Empire (1900–1918); Republic of Lithuania [independent state] (1918–1940); Lithuanian Soviet Socialist Republic (1940–1941); Lithuanian Soviet Socialist Republic under German occupation (1941–1944); Lithuanian Soviet Socialist Republic (1944–1991); Republic of Lituania [independent state] (1991– ) | Lithuania | 
| Luxembourg | LUX | 212 | LU | LUX | 442 | LUX | 174 | Grand Duchy of Luxemburg [personal union with the Kingdom of the Netherlands] (1815); Grand Duchy of Luxemburg [personal union with the Kingdom of the Netherlands] with Prussian soldiers stationed in Luxembourg City (1815–1830); Grand Duchy of Luxemburg [personal union with the Kingdom of the Netherlands] with Prussian soldiers stationed in Luxembourg City under Belgium occupation (1830–1831); Luxembourg province annexed by Belgium (1831); Grand Duchy of Luxemburg [personal union with the Kingdom of the Netherlands] with Prussian soldiers stationed in Luxembourg City under Belgium occupation (1831–1839); Grand Duchy of Luxemburg [personal union with the Kingdom of the Netherlands] with Prussian soldiers stationed in Luxembourg City (1839–1842); Grand Duchy of Luxembourg joins German customs union [Zollverein] (1842); Grand Duchy of Luxemburg [personal union with the Kingdom of the Netherlands] with Prussian soldiers stationed in Luxembourg City (1842–1867); Grand Duchy of Luxemburg [personal union with the Kingdom of the Netherlands] (1867–1890); Grand Duchy of Luxembourg (1890–1914); Grand Duchy of Luxembourg under German occupation (1914–1918); Grand Duchy of Luxembourg (1918–1919); Grand Duchy of Luxembourg leaves Zollverein (1919); Grand Duchy of Luxembourg (1919–1940); Grand Duchy of Luxembourg under German occupation (1940–1944); Grand Duchy of Luxembourg (1944– ) | Luxembourg | 
| Macedonia | MAC | 343 | MK | MKD | 807 | MKD | 176 | Ottoman Empire (1900–1912); province of Serbia/Yugoslavia (1912–1992); Former Yugoslav Republic of Macedonia [independent state] (1991– ) | Macedonia | 
| Malta | MLT | 338 | MT | MLT | 470 |  |  | British Crown Colony of Malta (1900–1964); Republic of Malta [independent state] (1964-) | Malta | 
| Mecklenburg Schwerin | MEC | 280 |  |  |  | MCL | 360 | Duchy of Mecklenburg-Schwerin (1789–1815); Grand Duchy of Mecklenburg-Schwerin (1815–1867); part of North German Confederation (1867–1871) | Mecklenburg Schwerin | 
| Modena | MOD | 332 |  |  |  | MDN | 351 | Duchy of Modena and Reggio (1789–1796); part of Cispadane Republic (1796–1797); part of the Cisalpine Republic (1797–1802); part of the Italian Republic (1802–1805); part of the Napoleonic Kingdom of Italy (1805–1814); Duchy of Modena and Reggio (1814–1848); Duchy of Modena and Reggio administered by Piedmont-Sardinia (1848–1849); Duchy of Modena and Reggio (1849–1859);Duchy of Modena and Reggio [incorporates Massa and Carrara] (1859); part of the United Provinces of Central Italy (1859–1860); annexed by Piedmont-Sardinia (1860) | Modena | 
| Moldova | MLD | 359 | MD | MDA | 498 | MDA | 126 | Russian Empire (1900–1918); Greater Romania (1918–1940); annexed by Soviet Union (1940–1941); re-incorporated into Romania (1941–1944); Moldavian Soviet Socialist Republic (1944–1991); Republic of Moldova [independent state] (1991– ) | Moldova | 
| Monaco | MNC | 221 | MC | MCO | 492 |  |  |  | Monaco | 
| Montenegro | MNG | 341 | ME | MNE | 499 | MNE | 183 | Prince-Bishopric of Montenegro (1789–1852); Principality of Montenegro (1852–1910); Kingdom of Montenegro (1910–1913); Kingdom of Montenegro partitions Sanjak of Novi Pazar with Serbia (1913); Kingdom of Montenegro (1913–1915); Kingdom of Montenegro [Shkod¨er annexed] (1915–1916); Kingdom of Montenegro (1916); Kingdom of Montenegro under Austro-Hungarian occupation (1916–1918); Kingdom of Montenegro under Serbian occupation (1918); Kingdom of Montenegro unified with Serbia (1918); Kingdom of Serbs, Croats, and Slovenes/Kingdom of Yugoslavia (1918–1941); Kingdom of Yugoslavia under Italian occupation (1941–1943); Kingdom of Yugoslavia under German occupation (1943–1945); Socialist Federal Republic of Yugoslavia (1945–1992); Federal Republic of Yugoslavia (1992-2003); State Union of Serbia and Montenegro (2003-2006); Montenegro [independent state] (2006– ) | Montenegro | 
| Netherlands | NTH | 210 | NL | NLD | 528 | NLD | 91 | Republic of the United Netherlands (1789–1795); Republic of the United Netherlands under French occupation (1795–1796); Batavian Republic (1796); Batavian Republic under French occupation (1796–1805); Batavian Commonwealth (1805); Batavian Commonwealth under French occupation (1805–1806); Kingdom of Holland (1806); Kingdom of Holland under French occupation (1806–1810); Kingdom of Holland annexed by France (1810–1813); Republic of the United Netherlands (1813–1815); Kingdom of the Netherlands (1815–1940); Kingdom of the Netherlands under German occupation (1940–1945); Kingdom of the Netherlands (1945– ) | Netherlands | 
| Norway | NOR | 385 | NO | NOR | 578 | NOR | 186 | Part of the Kingdom of Denmark-Norway (1789–1814); Kingdom of Norway [personal union with Sweden] (1814–1905); Kingdom of Norway [independent state] (1905– ) | Norway | 
| Papal States | PAP | 327 | VA | VAT | 336 | PPS | 361 | Papal States (1789–1798); the Roman Republic (1798–1800); Papal States (1800–1809); Papal States annexed by France (1809–1814); Papal States (1814–1849); the Roman Republic (1849); Papal States (1849–1860); Papal States [Romagna, Umbria, the Marches, Benevento and Pontecorvo annexed by Sardinia] (1860); Papal States (1860–1870) | Papal States | 
| Parma | PMA | 335 |  |  |  | PRM | 352 | Duchy of Parma and Piacenza (1789–1802); Duchy of Parma and Piacenza administered by France (1802–1808); Duchy of Parma and Piacenza annexed by France (1808–1814); Duchy of Parma and Piacenza (1814–1859); Duchy of Parma and Piacenza administered by Piedmont-Sardinia (1859–1860); Duchy of Parma and Piacenza annexed by Piedmont-Sardinia (1860) | Parma | 
| Poland | POL | 290 | PL | POL | 616 | POL | 17 | Polish-Lithuanian Commonwealth (1789–1793); second partition of Poland (1793); Polish-Lithuanian Commonwealth (1793–1795); third Partition of Poland (1795); Duchy of Warsaw (1807–1815); Congress Poland [personal union with Russia] (1815–1832); Congress Poland [incorporated into the Russian Empire] (1832–1867); autonomy retracted (1867); Second Polish Commonwealth (1918–1939); Second Polish Commonwealth partitioned by the USSR and Germany (1939–1941); Second Polish Commonwealth under German occupation (1941–1944); Republic of Poland (1944–1952); People’s Republic of Poland (1952–1990); Third Polish Commonwealth (1990– ) | Poland | 
| Portugal | POR | 235 | PT | PRT | 620 | PRT | 21 | Kingdom of Portugal (1789–1807); Kingdom of Portugal under French occupation (1807–1808); Kingdom of Portugal (1808–1910); Portuguese Republic (1910– ) | Portugal | 
| Romania | ROM | 360 | RO | ROU | 642 | ROU | 190 | Principality of Wallachia under Ottoman suzerainty under Austrian occupation (1789–1791); Principality of Wallachia under Ottoman suzerainty (1791–1807); Principality of Wallachia under Russian occupation (1807–1812); Principality of Wallachia under Ottoman suzerainty (1812–1821); Principality of Wallachia under direct Ottoman rule (1821–1822); Principality ofWallachia under Ottoman suzerainty (1822–1828); Principality of Wallachia under Russian occupation (1828–1829); Principality of Wallachia under Russian occupation [incorporation of the Ottoman Rayas north of the Danube] (1829); Principality of Wallachia under Russian occupation (1829–1834); Principality of Wallachia as a Russian protectorate (1834–1853); Principality of Wallachia under Russian occupation (1853– 1854); Principality of Wallachia as a Russian protectorate (1854); Principality of Wallachia under Austrian occupation (1854–1856); Principality of Wallachia under Ottoman suzerainty (1856–1859); Principality of Wallachia under Ottoman suzerainty [personal union with Moldavia] (1859–1861); Principality of Wallachia [personal union with Moldavia] (1861–1862); United Romanian Principalities (1862–1866); Romania (1866–1878); Romania [incorporation of northern Dobruja] [after three districts in southern Bessarabia ceded to Russia] (1878–1881); Kingdom of Romania (1881–1913); Kingdom of Romania [southern Dobruja annexed] (1913–1916); Kingdom of Romania under Central Powers occupation (1916); Kingdom of Romania (1916–1918); Kingdom of Romania [loses Dobruja to Bulgaria] [incorporates Bessarabia] (1918); Kingdom of Romania (1918–1919); Kingdom of Romania [incorporates Dobruja, Bukovina and Transylvania] (1919); Kingdom of Romania (1919–1944); Kingdom of Romania under Soviet occupation (1944–1947); People’s Republic of Romania (1947–1965); Socialist Republic of Romania (1965–1989); Romania (1989– ) | Romania | 
| Russia | RUS | 365 | RU | RUS | 643 | RUS | 11 | Russian Empire (1789–1917); Russia (1917–1918); Russian Socialist Federative Republic (USSR) (1918–1991); Russian Federation (1991– ) | Russia | 
| San Marino | SNM | 331 | SM | SMR | 674 |  |  |  | San Marino | 
| Saxony | SAX | 269 |  |  |  | SXN | 353 | Duchies of Saxe-Weimar and Saxe-Eisenach enter a personal union (1809–1867); part of North German Confederation (1867–1871) | Saxony | 
| Serbia | YUG | 345 | RS | SRB | 688 | SRB | 198 | Serbia [under First Serbian Uprising] (1804–1813); direct Ottoman rule (1813–1815); Principality of Serbia under Ottoman suzerainty (1815–1867); Principality of Serbia after evacuation of Kalemegdan fortress in Belgrade by the Ottomans (1867); Principality of Serbia under Ottoman suzerainty (1867–1878); Principality of Serbia [incorporates Nish] (1878); Principality of Serbia under Ottoman suzerainty (1878–1882); Kingdom of Serbia (1882–1915); Kingdom of Serbia under Central Powers occupation (1915–1918); Kingdom of Serbia unified with Montenegro (1918); Kingdom of Serbia unified with the State of Slovenes, Croats and Serbs (1918); Kingdom of Serbs, Croats, and Slovenes/Kingdom of Yugoslavia (1918–1941); Kingdom of Yugoslavia under German occupation (1941–1945); Socialist Federal Republic of Yugoslavia (1945–1992); Federal Republic of Yugoslavia (1992-2003); State Union of Serbia and Montenegro (2003-2006); Republic of Serbia (2006– ) | Serbia | 
| Slovakia | SLO | 317 | SK | SVK | 703 | SVK | 201 | Hungary/Austro-Hungarian Empire (1900–1918) [this refers to the Hungarian part of the Empire, which was ruled separately from the Austrian part]; Czechoslovakia (1918–1939); Slovak Republic (1939–1945); Slovak Republic under German occupation (1944–1945); Czecho-Slovakia (1945–1992); Slovak Republic [independent state] (1993– ) | Slovakia | 
| Slovenia | SLV | 349 | SI | SVN | 705 | SVN | 202 | Austria/Austro-Hungarian Empire (1900–1918); Kingdom of Serbs, Croats, and Slovenes/Kingdom of Yugoslavia (1918–1941); Kingdom of Yugoslavia under German occupation (1941–1945); Socialist Federal Republic of Yugoslavia (1945–1992); Republic of Slovenia [independent state] (1991– ) | Slovenia | 
| Spain | SPN | 230 | ES | ESP | 724 | ESP | 96 | Kingdom of Spain (1789–1808); Kingdom of Spain under French occupation (1808–1812); Catalonia annexed by France (1812–1813); Kingdom of Spain under French occupation (1813); Kingdom of Spain (1813–1873); Spanish Republic (1873); Kingdom of Spain (1873–1931); Second Spanish Republic (1931–1939); Spanish State (1939–1975); Kingdom of Spain (1975– ) | Spain | 
| Sweden | SWD | 380 | SE | SWE | 752 | SWE | 5 | Kingdom of Sweden (1789–1809); Kingdom of Sweden [Finland and Åland annexed by Russia] (1809); Kingdom of Sweden (1809– ) | Sweden | 
| Switzerland | SWZ | 225 | CH | CHE | 756 | CHE | 6 | Swiss Confederation [no central government] (1789–1798); Helvetic Republic under French occupation (1798–1803); Swiss Confederation (1803); Swiss Confederation under French occupation (1803–1814); Swiss Confederation (1814– ) | Switzerland | 
| Tuscany | TUS | 337 |  |  |  | TSC | 354 | Grand Duchy of Tuscany (1789–1799); Etruscan Republic under French occupation(1799); Grand Duchy of Tuscany (1799–1801); Kingdom of Etruria (1801–1807); Kingdom of Etruria annexed to France (1807–1814); Grand Duchy of Tuscany (1814–1847); Grand Duchy of Tuscany [incorporates Lucca] (1847); Grand Duchy of Tuscany (1847–1859); Grand Duchy of Tuscany joins Modena, Parma and Piacenza to form United Provinces of Central Italy (1859–1860); annexed by Piedmont-Sardinia (1860); autonomous (1860–1861) | Tuscany | 
| Two Sicilies | SIC | 329 |  |  |  | TWS | 356 | Kingdom of Naples (1789–1816); united with Sicily to form the Kingdom of the Two Sicilies (1816–1848); Kingdom of Sicily breaks away (1848–1849); Kingdom of the Two Sicilies (1849–1860); Two Sicilies annexed by Piedmont-Sardinia (1860) | Two Sicilies | 
| Ukraine | UKR | 369 | UA | UKR | 804 | UKR | 100 | Russian and Austro-Hungarian empires (1900–1917); divided between Poland, Romania, Czechoslovakia, USSR (1917–1919); Ukrainian Soviet Socialist Republic (1919–1941); Ukrainian Soviet Socialist Republic under German occupation (1941–1944); Ukrainian Soviet Socialist Republic (1944–1991); Ukraine (1991– ) | Ukraine | 
| United Kingdom | UKG | 200 | GB | GBR | 826 | GBR | 101 | Great Britain (1789–1801); United Kingdom of Great Britain and Ireland (1801–1922); United Kingdom of Great Britain and Northern Ireland (1922– ) | United Kingdom | 
| Wuerttemburg | WRT | 271 |  |  |  | WRG | 355 | Duchy of Würtemberg (1789–1803); Electorate Würtemberg (1803–1806); Kingdom of Würtemberg (1806–1871) | Wuerttemburg | 
| State Name | COW State Abbreviation | COW Numeric Code | ISO 3166 Alpha 2 code | ISO 3166 Alpha 3 code | ISO 3166 Numeric code | V-Dem Country Text ID | V-Dem Country ID | V-Dem Historical Names | Wikipedia | 
| Algeria | ALG | 615 | DZ | DZA | 012 | DZA | 103 | French colony (1900–1962) [three departments of France, but should be coded as a single unit, i.e., as single colony]; People’s Democratic Republic of Algeria [independent state] (1962– ) | Algeria | 
| Bahrain | BAH | 692 | BH | BHR | 048 | BHR | 146 | British protectorate (1900–1971); Kingdom of Bahrain [independent state] (1971– ) | Bahrain | 
| Egypt | EGY | 651 | EG | EGY | 818 | EGY | 13 | Ottoman Eyalet of Egypt (1789–1799); Ottoman Eyalet of Egypt under French occupation (1799–1801); Ottoman Eyalet of Egypt under British occupation (1801–1803); Ottoman Eyalet of Egypt (1803–1805); Ottoman Eyalet [nominally under Ottoman suzerainty] (1805–1866); Khedivate of Egypt (1866); Khedivate of Egypt within Ottoman Eyalet (1866–1867); Khedivate of Egypt (1867–1882); Khedivate of Egypt under British occupation (1882–1900); part of Ottoman Empire (1900); part of Ottoman Empire under British influence (1900–1914); Sultanate of Egypt (1914); Sultanate of Egypt under British protectorate (1914–1922); Egyptian Kingdom [nominally an independent state] (1922); Egyptian Kingdom under British military presence (1922–1953); Republic of Egypt (1953–1954); Republic of Egypt after British military presence ends (1954); Republic of Egypt (1954–1958); Egypt [part of the United Arab Republic] (1958–1961); Arab Republic of Egypt (1961–1967); Arab Republic of Egypt under Israeli occupation of the Sinai Peninsula (1967–1982); Arab Republic of Egypt (1982– ) | Egypt | 
| Iran | IRN | 630 | IR | IRN | 364 | IRN | 79 | Persia (1789–1935); Iran (1935–1979); Islamic Republic of Iran (1979– ) | Iran | 
| Iraq | IRQ | 645 | IQ | IRQ | 368 | IRQ | 80 | Ottoman Empire (1900–1917); Ottoman Empire under British occupation (1917–1920); State of Iraq [British-led League of Nations Mandate territory] (1920–1932); the Kingdom of Iraq [independent state] (1932); the Kingdom of Iraq (1932–1941); the Kingdom of Iraq under British occupation (1941); the Kingdom of Iraq (1941–1958); Republic of Iraq (1958-2003); Republic of Iraq under US occupation (2003-2012); Republic of Iraq (2012– ) | Iraq | 
| Israel | ISR | 666 | IL | ISR | 376 | ISR | 169 | British-led League of Nations mandate (1922–1948); State of Israel [independent state] (1948– ) | Israel | 
| Jordan | JOR | 663 | JO | JOR | 400 | JOR | 83 | Emirate of Transjordan (1922–1946); the Hashemite Kingdom of Jordan [independent state] (1946– ) | Jordan | 
| Kuwait | KUW | 690 | KW | KWT | 414 | KWT | 171 | Sheikhdom of Kuwait (1789–1871); Sheikhdom of Kuwait [under nominal Ottoman suzerainty] (1871–1899); Kuwait under informal protectorate of Britain (1899–1961); State of Kuwait [independent state] (1961–1990); State of Kuwait under Iraqi occupation (1990–1991); State of Kuwait (1991-) | Kuwait | 
| Lebanon | LEB | 660 | LB | LBN | 422 | LBN | 44 | Syrian province of the Ottoman Empire (1900–1918); Syrian province of the Ottoman Empire under French influence (1918–1920); State of Greater Lebanon (1920); State of Greater Lebanon under French influence (1920–1923); State of Greater Lebanon under French protectorate (1923–1926); Republic of Lebanon (1926); Republic of Lebanon under French protectorate (1926–1943); Republic of Lebanon [independent state] (1943); Republic of Lebanon under French influence (1943–1946); Republic of Lebanon after last French troops withdrawal (1946); Republic of Lebanon (1946–1991); Republic of Lebanon and occupied Southern Lebanon (1992– ) | Lebanon | 
| Libya | LIB | 620 | LY | LBY | 434 | LBY | 124 | Sultanate of Tripoli (1789–1834); Ottoman Eyalet of Tripolitania (1835–1911); Ottoman Eyalet of Tripolitania under Italian occupation (1911); Italian protectorate of Tripolitania (1912–1918); Tripolitanian Republic (1918–1922); Italian colony of Tripolitania (1922–1933); Tripolitania united with Fezzan and Cyrenaica as the Italian colony of Libya (1934–1942); Tripolitania and Cyrenaica under British occupation [administered separately] (1942–1943); Tripolitania and Cyrenaica under British occupation [administered separately] and Fezzan occupied by France (1943–1950); Tripolitania, Cyrenaica and Fezzan under UN supervision [separate British and French administration, with a UN commissioner in Tripoli] (1950–1951); United Kingdom of Libya [consolidated as a unified independent state] (1951–1963); Libyan Kingdom (1963–1968); Libyan Arab Republic (1968–1973); Socialist People’s Libyan Arab Jamahiriya (1973–1986); Great Socialist People’s Libyan Arab Jamahiriya (1986-2011); Libya (2011-2012); State of Libya (2012– ) | Libya | 
| Morocco | MOR | 600 | MA | MAR | 504 | MAR | 90 | Kingdom of Morocco (1789–1900); Kingdom of Morocco under French and Spanish sphere of influence (1900–1907); Kingdom of Morocco under French occupation (1907–1910); northern Kingdom of Morocco under Spanish occupation (1910); Kingdom of Morocco under French occupation (1910–1912); Kingdom of Morocco under French protectorate [though not integrated into France to the degree that other French colonies were] (1912–1956); Kingdom of Morocco [independent state](1956–) | Morocco | 
| Oman | OMA | 698 | OM | OMN | 512 | OMN | 187 | Sultanate of Muscat (1789–1820); Sultanate of Muscat and Oman (1820–1920); Sultanate of Muscat (1920–1955); Sultanate of Muscat and Oman (1955–1970); Sultanate of Oman (1970– ) | Oman | 
| Qatar | QAT | 694 | QA | QAT | 634 | QAT | 94 | Unofficial British protectorate (1900–1916); British protectorate (1916–1971); State of Qatar [independent state] (1971– ) | Qatar | 
| Saudi Arabia | SAU | 670 | SA | SAU | 682 | SAU | 197 | Al-Diriyah Emirate (1789–1818); Al-Diriyah Emirate under Egyptian occupation (1818–1822); Al-Diriyah Emirate [restored] (1822–1887); Al-Diriyah Emirate under Jebel Shammar occupation (1887–1902); Emirate of Nejd (1902–1913); Emirate of Nejd [incorporates al-Hasa] (1913); Emirate of Nejd (1913–1925); Emirate of Nejd [occupies and incorporates Hejaz] (1925); Emirate of Nejd (1925–1932); Nejd and Hejaz formally united as Kingdom of Saudi Arabia (1932– ) | Saudi Arabia | 
| Syria | SYR | 652 | SY | SYR | 760 | SYR | 97 | Syrian province of the Ottoman Empire (1900–1918); Syrian province of the Ottoman Empire under British and French occupation (1918–1920); Arab Kingdom of Syria (1920); Arab Kingdom of Syria divided into separate ”Levant States” by France (1920–1922); Syrian Federation (1922–1924); Syrian Federation under French protectorate (1923–1924); State of Syria (1924); State of Syria under French protectorate (1924–1930); Syrian Republic (1930); Syrian Republic under French protectorate (1930–1943); Syrian Republic [achieves independence] (1943); Syrian Republic under French protectorate (1943–1946); Syrian Republic [independence recognized, last French troops depart] (1946); Syrian Republic (1946–1958); part of United Arab Republic (1958–1961); Syrian Arab Republic (1961– ) | Syria | 
| Tunisia | TUN | 616 | TN | TUN | 788 | TUN | 98 | Beylik of Tunis [autonomous under nominal Ottoman suzerainty] (1789–1881); French protectorate of Tunisia (1881–1956); Tunisian Republic [independent state] (1956– ) | Tunisia | 
| Turkey | TUR | 640 | TR | TUR | 792 | TUR | 99 | Ottoman Empire (1789); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Serbia, Samos, Greece, Bosnia, Bulgaria, Eastern Rumelia and Crete] (1789–1804); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Samos, Greece, Bosnia, Bulgaria, Eastern Rumelia and Crete] (1804–1813); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Serbia, Samos, Greece, Bosnia, Bulgaria, Eastern Rumelia and Crete] (1813–1815); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Greece, Samos, Bosnia, Bulgaria, Eastern Rumelia and Crete] (1815–1821); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Greece, Bosnia, Bulgaria, Eastern Rumelia and Crete] (1821–1822); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Bosnia, Bulgaria, Eastern Rumelia, Crete] (1822–1830); Ottoman Empire [includes Bosnia, Bulgaria, Eastern Rumelia, Crete] (1830–1831); Ottoman Empire [includes Bosnia, Bulgaria, Eastern Rumelia, Crete, Iraq (Baghdad)] (1831–1841); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Bosnia, Bulgaria, Eastern Rumelia, Crete, Iraq (Baghdad)] (1841–1850); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Bosnia, Bulgaria, Eastern Rumelia, Crete, Iraq (Baghdad), Yemen (North)](1850–1859); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Bosnia, Bulgaria, Eastern Rumelia, Crete, Iraq (Baghdad), Yemen (North), Baban (Kurdistan)] (1859–1878); Ottoman Empire[includes Hejaz, Syria, Lebanon, Palestine, Eastern Rumelia, Crete, Iraq (Baghdad), Yemen (North), Baban (Kurdistan)] (1878–1885); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Crete, Iraq (Baghdad), Yemen (North), Baban (Kurdistan)] (1885–1897); Ottoman Empire [includes Hejaz, Syria, Lebanon, Palestine, Iraq (Baghdad), Yemen (North), Baban (Kurdistan)] (1897–1918); Ottoman Empire [transition phase] (1918–1923); Republic of Turkey (1923– ) | Turkey | 
| United Arab Emirates | UAE | 696 | AE | ARE | 784 | ARE | 207 | British sphere of influence (1900–1971); independent state formed from seven emirates: Abu Dhabi, Ajman, Dubai, Fujairah, Ras al-Khaimah, Sharjah, Umm al-Quwain (1971– ) | United Arab Emirates | 
| Yemen | YEM | 679 | YE | YEM | 887 | YEM | 14 | Yemen (1789–1850); part of the Ottoman Empire [varying degrees of control/direct rule] (1850–1918); Mutawakkilite Kingdom of Yemen (1918–1962); the Yemen Arab Republic [”North Yemen”] (1962–1990); Republic of Yemen (1990– ) | Yemen | 
| Yemen Arab Republic | YAR | 678 |  |  |  | YEM | 14 | Yemen (1789–1850); part of the Ottoman Empire [varying degrees of control/direct rule] (1850–1918); Mutawakkilite Kingdom of Yemen (1918–1962); the Yemen Arab Republic [”North Yemen”] " | Yemen Arab Republic | 
| Yemen People's Republic | YPR | 680 | YD | YMD | 720 | YMD | 23 | Aden, part of British India (1900–1937); British colony of Aden (1937–1963); Federation of South Arabia (1963–1967); People’s Republic of South Yemen (1967–1970); People’s Democratic Republic of Yemen (1970–1990) | Yemen People's Republic | 
| State Name | COW State Abbreviation | COW Numeric Code | ISO 3166 Alpha 2 code | ISO 3166 Alpha 3 code | ISO 3166 Numeric code | V-Dem Country Text ID | V-Dem Country ID | V-Dem Historical Names | Wikipedia | 
| Australia | AUL | 900 | AU | AUS | 036 | AUS | 67 | British colony of New South Wales (1789–1901); Commonwealth of Australia (1901– ) | Australia | 
| Federated States of Micronesia | FSM | 987 | FM | FSM | 583 |  |  | German colony (1900–1914); Japanese colony (1914–1944); Federated States of Micronesia under US occupation and trusteeship (1944–1986); Federated States of Micronesia [independent state] (1986– ) | Federated States of Micronesia | 
| Fiji | FIJ | 950 | FJ | FJI | 242 | FJI | 162 | British colony (1900–1970); Dominion of Fiji [independent state] (1970–1987); Republic of Fiji (1987–1990); Sovereign Democratic Republic of Fiji (1990–1998); Republic of the Fiji Islands (1998-2011); Republic of Fiji (2011– ) | Fiji | 
| Kiribati | KIR | 946 | KI | KIR | 296 |  |  | British protectorate over Gilbert and Ellice Islands [administered by Western Pacific High Commission in Fiji] (1900–1916); Crown Colony of Gilbert and Ellice Islands (1916–1919); Crown Colony of Gilbert and Ellice Islands joined by Christmas Island/Kiritimati (1919); Crown Colony of Gilbert and Ellice Islands (1919–1937); Crown Colony of Gilbert and Ellice Islands joined by Phoenix Islands (1937); Crown Colony of Gilbert and Ellice Islands (1937–1941); Crown Colony of Gilbert and Ellice Islands under Japanese occupation (1941–1943); Crown Colony of Gilbert and Ellice Islands (1943–1971); Crown Colony of Gilbert and Ellice Islands with self-rule (1971–1975); Crown Colony of Gilbert and Ellice Islands with self-determination over domestic affairs (1975–1979); Kiribati [independent state] (1979– ) | Kiribati | 
| Marshall Islands | MSI | 983 | MH | MHL | 584 |  |  | German protectorate [part of German New Guinea] (1900–1914); German protectorate under Japanese occupation (1914–1920); Japanese colony (1920–1944); Japanese colony under US occupation (1944–1979); Marshall Islands with self-rule (1979–1986); Marshall Islands [independent state] (1986– ) | Marshall Islands | 
| Nauru | NAU | 970 | NR | NRU | 520 |  |  | Nauru as German colony (1900–1914); Nauru under Australian occupation (1914–1923); Nauru under League of Nations trustee mandate [held jointly by Australia, New Zealand, and UK] (1923–1942); Nauru under Japanese occupation (1942–1945); Nauru under Australian occupation (1945–1947); Nauru under UN trustee mandate [held jointly by Australia, New Zealand, and UK] (1947–1966); Republic of Nauru [self-governing] (1966–1968); Republic of Nauru [independent state] (1968– ) | Nauru | 
| New Zealand | NEW | 920 | NZ | NZL | 554 | NZL | 185 | New Zealand Colony (1841–1907); Dominion of New Zealand (1907– ) | New Zealand | 
| Palau | PAL | 986 | PW | PLW | 585 |  |  | Palau as a German colony (1900–1914); Palau under Japanese occupation (1914–1944); Palau under US occupation (1944–1947); Palau as a US trust territory (1947–1994); Republic of Palau with self-rule (1978–1994); Republic of Palau [independent state] (1994– ) | Palau | 
| Papua New Guinea | PNG | 910 | PG | PNG | 598 | PNG | 93 | British protectorate of British New Guinea (1900–1902); British New Guinea under the authority of the Commonwealth of Australia (1902–1906); Territory of Papua (1906); Territory of Papua under the authority of the Commonwealth of Australia (1906–1945); Territory of Papua after union with the Territory of New Guinea (1945); Territory of Papua and New Guinea under the authority of the Commonwealth of Australia (1945–1975); Independent State of Papua New Guinea (1975– ) | Papua New Guinea | 
| Samoa | WSM | 990 | WS | WSM | 882 |  |  | German colony of German Samoa (1900–1914); Samoa under New Zealand mandate [territory granted by League of Nations] (1914–1962); Western Samoa [independent state] (1962–1997); Samoa (1997– ) | Samoa | 
| Solomon Islands | SOL | 940 | SB | SLB | 090 | SLB | 203 | Solomon Islands as a British colony or protectorate (1900–1942); Solomon Islands as a British colony under Japanese occupation (1942–1943); Solomon Islands as a British colony (1943–1976); Solomon Islands with self-rule within the Commonwealth (1976–1978); Solomon Islands [independent state] (1978– ) | Solomon Islands | 
| Tonga | TON | 955 | TO | TON | 776 |  |  | British protectorate (1900–1901); part of the British Western Pacific Territories under a colonial High Commissioner residing in Fiji (1901–1952); Kingdom of Tonga under British protectorate (1952–1970); Kingdom of Tonga with self-rule within the Commonwealth (1970–1999); Kingdom of Tonga [independent state] (1999– ) | Tonga | 
| Tuvalu | TUV | 947 | TV | TUV | 798 |  |  | Part of Ellice Islands British protectorate [British Western Pacific Territories] (1900–1916); part of Gilbert and Ellice Islands colony (1916–1974); Tuvalu after separation from Gilbert Islands [British dependency status] (1974–1978); Tuvalu with self-rule within the Commonwealth (1978-2000); Tuvalu [independent state] (2000– ) | Tuvalu | 
| Vanuatu | VAN | 935 | VU | VUT | 548 | VUT | 206 | Vanuatu under joint French and British control by British-French Condominium [separate governing systems] (1906–1980); Republic of Vanuatu [independent state] (1980– ) | Vanuatu |