| Time | Country | % Correct |
|---|---|---|
| 1919 - 1939, 1945 - 1949, 1990 - present | Germany | 98%
|
| 1635 - 1795, 1919 - 1922, 1991 - present | Russia | 98%
|
| 1919 - 1921 | Central Lithuania | 96%
|
| 1919 - 1939, 1991 - present | Lithuania | 96%
|
| 1991 - present | Belarus | 95%
|
| 1939 - 1939, 1993 - present | Slovakia | 95%
|
| 1919 - 1922, 1991 - present | Ukraine | 95%
|
| 1993 - present | Czech Republic | 94%
|
| 1635 - 1795 | Habsburg Empire | 90%
|
| 1939 | Hungary | 88%
|
| 1922 - 1939, 1945 - 1991 | Soviet Union | 88%
|
| 1919 - 1939 | Latvia | 83%
|
| 1919 - 1939, 1945 - 1993 | Czechoslovakia | 82%
|
| 1919 - 1939 | Romania | 75%
|
| 1635 - 1721 | Sweden | 73%
|
| 1635 - 1795 | Brandenburg Prussia | 72%
|
| 1635 - 1655 | Duchy of Prussia | 72%
|
| 1949 - 1990 | East Germany | 71%
|
| 1919 - 1939 | Danzig | 59%
|
| 1635 - 1792 | Ottoman Empire | 54%
|
| 1635 - 1653 | Pomerania | 9%
|