| Similarity | Rank | |
|---|---|---|
| pre-historic | 0.847 | 93508 |
| prehistoric | 0.829 | 22958 |
| Paleolithic | 0.828 | 60944 |
| megalithic | 0.825 | 94686 |
| Archaic | 0.818 | 81589 |
| prehistory | 0.783 | 66138 |
| Prehistoric | 0.781 | 79408 |
| Minoan | 0.761 | 85434 |
| civilisations | 0.752 | 60506 |
| Pleistocene | 0.749 | 71860 |
| hunter-gatherers | 0.742 | 82808 |
| pre-Christian | 0.739 | 79257 |
| Triassic | 0.731 | 93483 |
| hunter-gatherer | 0.731 | 80285 |
| archaeological | 0.721 | 15673 |
| ancient | 0.719 | 2250 |
| civilisation | 0.718 | 28525 |
| Mesopotamian | 0.716 | 76978 |
| radiocarbon | 0.706 | 83689 |
| Cretaceous | 0.704 | 59402 |
| burials | 0.701 | 44292 |
| millennia | 0.701 | 24264 |
| civilizations | 0.700 | 19966 |
| Devonian | 0.699 | 99765 |
| Etruscan | 0.699 | 64908 |