| Similarity | Rank | |
|---|---|---|
| civilisations | 0.945 | 60506 |
| civilization | 0.899 | 8055 |
| civilisation | 0.843 | 28525 |
| millenia | 0.821 | 80184 |
| millennia | 0.821 | 24264 |
| empires | 0.801 | 28124 |
| Sumerians | 0.787 | 96259 |
| epochs | 0.779 | 73308 |
| prehistory | 0.773 | 66138 |
| mythologies | 0.765 | 67678 |
| city-states | 0.765 | 90217 |
| centuries | 0.753 | 4516 |
| ancient | 0.753 | 2250 |
| antiquity | 0.747 | 25157 |
| cultures | 0.746 | 4691 |
| Mesopotamian | 0.742 | 76978 |
| kingdoms | 0.742 | 23519 |
| Civilizations | 0.739 | 74084 |
| pre-historic | 0.735 | 93508 |
| humankind | 0.734 | 22725 |
| Mayans | 0.731 | 55131 |
| peoples | 0.729 | 6378 |
| religions | 0.728 | 7645 |
| pre-Columbian | 0.726 | 84702 |
| ancients | 0.726 | 37287 |