| Time of Existence | Continent | Reason for dissolution | Answer | % Correct |
|---|---|---|---|---|
| 1922-1991 | Europe/Asia | Split into Russia, Ukraine, Belaurs, Latvia, etc. | USSR | 95%
|
| 1918-1993 | Europe | Split into Czechia and Slovakia | Czechoslovakia | 89%
|
| 1918-2003 | Europe | Parts of the country broke free and it became Serbia-Montenegro in 2003 | Yugoslavia | 89%
|
| 1912-1951 | Asia | Annexed by China | Tibet | 84%
|
| 1949-1990 | Europe | Merged with another country to form Germany | East Germany | 80%
|
| 1525-1871 | Europe | Formed Germany | Prussia | 80%
|
| 1945-1976 | Asia | Merged with another country to form Vietnam | North Vietnam | 68%
|
| 1949-1990 | Europe | Merged with another country to form Germany | West Germany | 68%
|
| 1955-1976 | Asia | Merged with another country to form Vietnam | South Vietnam | 66%
|
| 1867-1918 | Europe | Dissolved after WWI | Austria-Hungary | 61%
|
| 1967-1990 | Asia | Merged with another country to form Yemen | South Yemen | 59%
|
| 1836–1846 | North America | Joined the USA | Texas | 57%
|
| 1907-1949 | North America | Joined Canada | Newfoundland | 55%
|
| 1965-1979 | Africa | Became Zimbabwe | Rhodesia | 52%
|
| 1918-1990 | Asia | Merged with another country to form Yemen | North Yemen | 50%
|
| 1795-1893 | Oceania | Annexed by USA | Hawaii | 43%
|
| 1932-1945 | Asia | Annexed by China | Manchuria | 36%
|
| 1920–1939 | Europe | Annexed into Germany then Poland | Danzig | 34%
|
| 555-1871 | Europe | Joined the German Empire | Bavaria | 32%
|
| 1967-1970 | Africa | Re-annexed into Nigeria | Biafra | 32%
|
| 1861–1865 | North America | Re-annexed into USA | CSA | 30%
|
| 1755–1769 | Europe | Annexed by France | Corsica | 27%
|
| 1642-1975 | Asia | Annexed by India | Sikkim | 27%
|
| 1854–1902 | Africa | Annexed into South Africa | Orange | 23%
|
| 697–1797 | Europe | Conquered by Napoleon and Austria | Venice | 18%
|
| 1035–1707 | Europe | Merged with another country to form Spain | Aragon | 16%
|
| 1816–1897 | Africa | Conquered by British Empire | Zulu | 16%
|
| 1852–1902, 1914-1915 | Africa | Annexed into South Africa | Transvaal | 14%
|
| 1916–1925 | Asia | Merged with another country to form Hejaz and Nejd | Hejaz | 9%
|
| 1836–1839 | South America | Split into Peru and Bolivia | Peru-Bolivia | 9%
|
| 1920–1924 | Europe | Split between Italy and Yugoslavia | Fiume | 7%
|
| ~10th century – 1868 | Europe | Split between Spain and Portugal | Couto Misto | 5%
|
| 1816–1921 | Europe | Annexed by Beglium | Neutral Moresnet | 5%
|
| 1921-1944 | Asia | Annex by the USSR | Tanna Tuva | 5%
|
| 1839–1843 | Africa | Annexed into South Africa | Natalia | 2%
|