| Time of Existence | Continent | Reason for dissolution | Answer | % Correct |
|---|---|---|---|---|
| 1922-1991 | Europe/Asia | Split into Russia, Ukraine, Belaurs, Latvia, etc. | USSR | 96%
|
| 1918-2003 | Europe | Parts of the country broke free and it became Serbia-Montenegro in 2003 | Yugoslavia | 90%
|
| 1918-1993 | Europe | Split into Czechia and Slovakia | Czechoslovakia | 88%
|
| 1912-1951 | Asia | Annexed by China | Tibet | 85%
|
| 1949-1990 | Europe | Merged with another country to form Germany | East Germany | 81%
|
| 1525-1871 | Europe | Formed Germany | Prussia | 81%
|
| 1945-1976 | Asia | Merged with another country to form Vietnam | North Vietnam | 71%
|
| 1949-1990 | Europe | Merged with another country to form Germany | West Germany | 71%
|
| 1955-1976 | Asia | Merged with another country to form Vietnam | South Vietnam | 69%
|
| 1867-1918 | Europe | Dissolved after WWI | Austria-Hungary | 65%
|
| 1967-1990 | Asia | Merged with another country to form Yemen | South Yemen | 60%
|
| 1836–1846 | North America | Joined the USA | Texas | 56%
|
| 1907-1949 | North America | Joined Canada | Newfoundland | 52%
|
| 1918-1990 | Asia | Merged with another country to form Yemen | North Yemen | 52%
|
| 1965-1979 | Africa | Became Zimbabwe | Rhodesia | 50%
|
| 1795-1893 | Oceania | Annexed by USA | Hawaii | 46%
|
| 1920–1939 | Europe | Annexed into Germany then Poland | Danzig | 35%
|
| 1932-1945 | Asia | Annexed by China | Manchuria | 35%
|
| 555-1871 | Europe | Joined the German Empire | Bavaria | 31%
|
| 1967-1970 | Africa | Re-annexed into Nigeria | Biafra | 29%
|
| 1755–1769 | Europe | Annexed by France | Corsica | 27%
|
| 1861–1865 | North America | Re-annexed into USA | CSA | 27%
|
| 1854–1902 | Africa | Annexed into South Africa | Orange | 25%
|
| 1642-1975 | Asia | Annexed by India | Sikkim | 25%
|
| 1035–1707 | Europe | Merged with another country to form Spain | Aragon | 17%
|
| 697–1797 | Europe | Conquered by Napoleon and Austria | Venice | 17%
|
| 1816–1897 | Africa | Conquered by British Empire | Zulu | 15%
|
| 1852–1902, 1914-1915 | Africa | Annexed into South Africa | Transvaal | 13%
|
| 1916–1925 | Asia | Merged with another country to form Hejaz and Nejd | Hejaz | 10%
|
| 1836–1839 | South America | Split into Peru and Bolivia | Peru-Bolivia | 8%
|
| 1920–1924 | Europe | Split between Italy and Yugoslavia | Fiume | 6%
|
| ~10th century – 1868 | Europe | Split between Spain and Portugal | Couto Misto | 4%
|
| 1816–1921 | Europe | Annexed by Beglium | Neutral Moresnet | 4%
|
| 1921-1944 | Asia | Annex by the USSR | Tanna Tuva | 4%
|
| 1839–1843 | Africa | Annexed into South Africa | Natalia | 2%
|