| Similarity | Rank | |
|---|---|---|
| the_industrial_revolution | 0.882 | 58402 |
| industrialization | 0.675 | 20450 |
| industrialisation | 0.618 | 47173 |
| the_French_revolution | 0.611 | 38820 |
| the_nineteenth_century | 0.611 | 41612 |
| the_American_revolution | 0.585 | 61560 |
| steam_engine | 0.577 | 57710 |
| in_the_[number]_th_century | 0.577 | 37990 |
| the_Middle_Ages | 0.571 | 50560 |
| in_the_nineteenth_century | 0.571 | 37884 |
| in_the_twentieth_century | 0.570 | 42594 |
| feudalism | 0.570 | 79517 |
| the_eighteenth_century | 0.568 | 65373 |
| in_the_last_century | 0.568 | 65606 |
| the_early_[number]_century | 0.565 | 13259 |
| the_late_[number]_century | 0.564 | 59566 |
| the_American_Civil_War | 0.560 | 99889 |
| capitalism | 0.559 | 5456 |
| the_Great_Depression | 0.555 | 41962 |
| the_[number]_th_century | 0.554 | 32296 |
| the_[number]_century | 0.553 | 3864 |
| technological_change | 0.552 | 34276 |
| during_the_[number]_century | 0.551 | 30314 |
| the_last_century | 0.551 | 77743 |
| the_Revolutionary_War | 0.549 | 89614 |