| Similarity | Rank | |
|---|---|---|
| a_brief_history_of | 0.786 | 62289 |
| history_of | 0.654 | 3088 |
| the_history_of | 0.577 | 1208 |
| a_history_of | 0.565 | 5010 |
| a_brief_overview_of | 0.559 | 77096 |
| the_early_history_of | 0.555 | 57852 |
| the_origin_of | 0.541 | 6560 |
| an_introduction_to | 0.540 | 8851 |
| its_history | 0.534 | 13298 |
| historical_background | 0.534 | 60176 |
| chronology_of | 0.532 | 63616 |
| :_an_introduction | 0.524 | 73941 |
| an_overview_of | 0.519 | 9949 |
| an_explanation_of | 0.517 | 39551 |
| :_an_introduction_to | 0.512 | 51732 |
| an_account_of | 0.508 | 29083 |
| essay_on | 0.498 | 22698 |
| an_excerpt_from | 0.496 | 51908 |
| a_chapter_on | 0.491 | 65809 |
| an_outline_of | 0.490 | 48658 |
| a_bibliography | 0.489 | 51064 |
| an_introduction | 0.488 | 31890 |
| a_biography_of | 0.487 | 50528 |
| the_early_day_of | 0.486 | 52657 |
| an_overview | 0.485 | 45310 |