Category
6 - Global History | 35 (10%) | 13 - Prehistory and Antiquity | 58 (17%) | 14 - Middle-Ages | 57 (16%) | 15 - Renaissance to French Revolution | 53 (15%) | 16 - 19th Century | 80 (23%) | 17 - First World War and onward | 64 (18%) |
| Difficulty
Difficulty 1 | 38 (11%) | Difficulty 2 | 41 (12%) | Difficulty 3 | 75 (22%) | Difficulty 4 | 76 (22%) | Difficulty 5 | 117 (34%) |
| Zone
1 - World | 23 (7%) | 2 - Europe (Minus Russia) | 157 (45%) | 3 - United States | 30 (9%) | 4 - Latin America | 23 (7%) | 5 - Black Africa | 22 (6%) | 6 - Arab World and Israel | 21 (6%) | 7 - Asia (except Middle-East) | 56 (16%) | 8 - Others | 15 (4%) |
|