| Size | Year | Answer | % Correct |
|---|---|---|---|
| 35.5 mil | 1920 | British Empire | 97%
|
| 22.8 mil | 1895 | Russian Empire | 96%
|
| 14.7 mil | 1700s | China | 94%
|
| 11.5 mil | 1920 | French Empire | 91%
|
| 24 mil | 1200s | Mongol Empire | 91%
|
| 5 mil | 117 | Roman Empire | 91%
|
| 6 mil | 1942 | Nazi Germany | 89%
|
| 13.7 mil | 1810 | Spanish Empire | 89%
|
| 10.0 mil | 1934 | United States of America | 89%
|
| 5.2 mil | 1683 | Ottoman Empire | 85%
|
| 7 mil | 1943 | Empire of Japan | 84%
|
| 5 mil | 250 BC | Maurya Empire (India) | 81%
|
| 5.5 mil | 1820 | Portuguese Empire | 79%
|
| 5.2 mil | 323 BC | Macedonia | 76%
|
| 8.5 mil | current | Brazil | 73%
|
| 10.0 mil | current | Canada | 70%
|
| 3.8 mil | 1938 | Italian Empire | 68%
|
| 5.5 mil | 500 BC | Achaemenid Persian Empire | 65%
|
| 7.7 mil | current | Australia | 63%
|
| 4 mil | 1940 | Dutch Empire | 63%
|
| 5 mil | 1823 | Mexican Empire | 55%
|
| 11.1 mil | 720 | Umayyad Caliphate | 44%
|
| 4 mil | 441 | Hunnic Empire | 29%
|
| 4.6 mil | 800 | Tibetan Empire | 8%
|