| Similarity | Rank | |
|---|---|---|
| era | 0.683 | 4483 |
| that_era | 0.682 | 30591 |
| an_era | 0.659 | 75501 |
| the_last_century | 0.649 | 77743 |
| the_twentieth_century | 0.645 | 31810 |
| this_period | 0.643 | 12824 |
| era_of | 0.641 | 9454 |
| the_golden_age_of | 0.630 | 95346 |
| the_1960 | 0.617 | 24570 |
| the_1940 | 0.616 | 73356 |
| modern_time | 0.610 | 56993 |
| the_late_[number]_century | 0.599 | 59566 |
| our_era | 0.597 | 97719 |
| the_twenty-first_century | 0.596 | 64068 |
| the_1950 | 0.589 | 32477 |
| an_era_of | 0.585 | 71764 |
| the_1970 | 0.584 | 25452 |
| the_[number]_century | 0.583 | 3864 |
| the_1980 | 0.580 | 23629 |
| the_1920 | 0.579 | 50431 |
| the_1930 | 0.568 | 34500 |
| the_1990 | 0.568 | 24237 |
| the_reign_of | 0.562 | 40613 |
| the_present_day | 0.556 | 11647 |
| the_[number]_th_century | 0.556 | 32296 |