| Empire | Million square miles | % of the world | Year | % Correct |
|---|---|---|---|---|
| mongol | 9.27 | 17.81 | 1309 | 94%
|
| british empire | 13.71 | 26.35 | 1920 | 63%
|
| russian empire | 8.80 | 16.92 | 1895 | 49%
|
| French empire | 4.44 | 8.53 | 1920 | 45%
|
| spanish empire | 5.29 | 10.17 | 1810 | 45%
|
| qing dynasty | 5.68 | 10.91 | 1790 | 22%
|
| umayyad caliphate | 4.29 | 8.24 | 720 | 14%
|
| abbasid caliphate | 4.29 | 8.24 | 750 | 10%
|
| yuan dynasty | 4.25 | 8.16 | 1310 | 10%
|
| xiongnu empire | 3.47 | 6.68 | 176 BC | 6%
|