SimilarityRank
for_thousand_of_year 0.741 26866
century_ago 0.731 67706
in_ancient_time 0.704 48941
thousand_of_year 0.700 70681
for_millennium 0.672 62319
around_[number]_year_ago 0.667 99750
our_ancestor 0.654 28856
some_[number]_year_ago 0.638 44893
ancient_culture 0.637 86296
ancient 0.630 4287
an_ancient 0.629 16341
million_of_year 0.619 47068
[number]_million_year_ago 0.611 80067
for_hundred_of_year 0.607 43379
about_[number]_year_ago 0.601 22341
ancient_time 0.598 91668
since_ancient_time 0.598 92444
over_[number]_year_ago 0.597 22327
ancient_Egyptian 0.591 58042
for_many_century 0.588 87438
[number]_B.C. 0.587 81295
[number]_BC 0.580 34516
long_ago 0.580 11040
[number]_year_ago 0.578 3595
in_[number]_BC 0.577 52868