| The Library of Alexandria: 478 (23.0%) |  |
| Dinosaurs!: 416 (20.0%) | |
| Imperial Rome at its height: 279 (13.4%) | |
| Construction of the Pyramids: 168 (8.1%) | |
| Tenochtitlan before the Spanish conquest: 136 (6.5%) | |
| The Apollo 11 moon landing: 135 (6.5%) | |
| The eruption of Krakatoa: 83 (4.0%) | |
| The first humans in Africa: 71 (3.4%) | |
| The Battle of Agincourt: 65 (3.1%) | |
| Signing the US Declaration of Independence: 62 (3.0%) | |
| Tokugawa unifying Japan: 54 (2.6%) | |
| The Wright Brothers' first flight: 50 (2.4%) | |
| da Vinci painting the Mona Lisa: 38 (1.8%) | |
| The Hindenburg: 31 (1.5%) | |
| Signing of the Magna Carta: 16 (0.8%) | |
