SimilarityRank
date_back_to 0.734 19696
from_the_[number]_century 0.660 32292
date_back_to_[number] 0.627 25557
early_[number]_century 0.600 23404
period_from 0.588 19188
late_[number]_century 0.588 81307
the_late_[number]_century 0.579 59566
c_._[number] 0.572 13653
undated 0.570 73142
the_earliest 0.565 64650
predate 0.559 39484
the_[number]_century_ad 0.557 97270
the_[number]_th_century 0.552 32296
[number]_century 0.551 4260
the_beginning_of_the_[number]_century 0.546 98367
as_far_back_as 0.543 81634
the_early_[number]_century 0.541 13259
circa_[number] 0.536 17042
the_Bronze_Age 0.533 84065
early_period 0.532 97586
[number]_th_century 0.531 34991
(_c_._[number]_) 0.530 55014
extant 0.523 32326
the_present_day 0.522 11647
(_c_._[number] 0.522 92594