tests by lutzen with the online test builder (11 tests)
Ranked by: number of candidates
1. Horse-riding (7109 candidates)
2. Vocabulary; teeth (4261 candidates)
3. War of the Roses (3313 candidates)
4. Castles and British Palaces (1994 candidates)
5. Royal Family (1747 candidates)
6. Dynasty of Hanover (1535 candidates)
7. Stuart dynasty (1513 candidates)
8. Tudor dynasty (1397 candidates)
9. Scotland (1238 candidates)
10. Wimbledon Championship (922 candidates)
11. Plantagenet dynasty (585 candidates)