| Rank | Population | Answer | % Correct |
|---|---|---|---|
| 4 | 78M | United States | USA | 86%
|
| 11 | 31M | Ottoman Empire | 73%
|
| 14 | 17M | Brazil | 70%
|
| 3 | 136M | Russian Empire | 70%
|
| 1 | 400M | British Empire | 68%
|
| 8 | 47M | Austria-Hungary | 62%
|
| 6 | 67M | German Empire | 62%
|
| 5 | 78M | French Empire | 59%
|
| 13 | 18M | Spanish Empire | 54%
|
| 9 | 46M | Empire of Japan | Japanese Empire | 51%
|
| 7 | 47M | Dutch Empire | 43%
|
| 2 | 400M | Qing Dynasty | 41%
|
| 10 | 33M | Kingdom of Italy | 16%
|
| 15 | 17M | Korean Empire | 16%
|
| 12 | 10M - 20M | Sokoto Caliphate | 3%
|