| Hint | Answer | % Correct |
|---|---|---|
| 1920 - 1922 (incorporated into USSR) | Byelorussian Soviet Socialist Republic | 100%
|
| 1948 - 1990 | Czechoslovak Republic / Czechoslovak Socialist Republic | 100%
|
| 1945 - 1992 | Federal People's Republic of Yugoslavia / Socialist Federal Republic of Yugoslavia | 100%
|
| 1949 - 1989 | Hungarian People's Republic | 100%
|
| March - August 1919 | Hungarian Soviet Republic | 100%
|
| 1946 - 1991 | People's Republic of Albania / People's Socialist Republic of Albania | 100%
|
| 1946 - 1990 | People's Republic of Bulgaria | 100%
|
| 1947 - 1989 | Republic of Poland / Polish People's Republic | 100%
|
| 1917 - 1922 (incorporated into USSR) | Russian Soviet Federative Socialist Republic | 100%
|
| January - February 1919 (merged with above) | Socialist Soviet Republic of Byelorussia | 100%
|
| 1917 - 1918 | Ukrainian People's Republic of Soviets | 100%
|
| March - April 1918 | Ukrainian Soviet Republic | 100%
|
| 1919 - 1922 (incorporated into USSR) | Ukrainian Soviet Socialist Republic | 100%
|
| 1922 - 1991 | Union of Soviet Socialist Republics | 100%
|
| January - May 1918 | Finnish Socialist Workers' Republic | 80%
|
| 1949 - 1989 | German Democratic Republic | 80%
|
| 1918 - 1920 | Latvian Socialist Soviet Republic | 80%
|
| 1918 - 1919 (merged with below) | Lithuanian Soviet Socialist Republic | 80%
|
| 1947 - 1989 | Romanian People's Republic / Socialist Republic of Romania | 80%
|
| March - May 1871 | Paris Commune | 40%
|
| April - May 1919 | Bavarian Soviet Republic | 20%
|
| January - February 1919 | Bremen Soviet Republic | 20%
|
| 1942 - 1943 | Bihać Republic | 0%
|
| May - June 1919 | Crimean Socialist Soviet Republic | 0%
|
| February - March 1918 | Donetsk–Krivoy Rog Soviet Republic | 0%
|
| July - September 1920 | Galician Soviet Socialist Republic | 0%
|
| January - March 1918 | Odessa Soviet Republic | 0%
|
| March - November 1944 | Political Committee of National Liberation | 0%
|
| 1918 - 1919 | Republic of Tarnobrzeg | 0%
|
| July - December 1941 | Republic of Užice | 0%
|
| 1937 - 1939 | Revolutionary Catalonia | 0%
|
| 1919 - 1920 | Socialist Soviet Republic of Lithuania and Belorussia | 0%
|
| August - September 1903 | Strandzha Commune | 0%
|