| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| april 15th day in history | 0.27 | 0.5 | 3796 | 20 |
| on this day in history 15th april | 0.36 | 0.6 | 8461 | 51 |
| history of tax day april 15th | 0.71 | 0.4 | 1578 | 7 |
| april 15th events in history | 0.67 | 0.8 | 9705 | 8 |
| in history april 15 | 0.73 | 0.8 | 2362 | 72 |
| today in history april 15 | 1.59 | 0.1 | 4572 | 94 |
| what happened on april 15th in history | 0.24 | 0.3 | 2386 | 6 |
| april 15 historical events on this day | 1.95 | 0.2 | 3478 | 26 |
| historical events on april 15th | 1.43 | 0.5 | 5169 | 93 |
| april 15 history events | 0.29 | 0.6 | 5632 | 18 |
| what happened on april 15 in history | 0.52 | 0.6 | 7927 | 40 |
| what is the significance of april 15th | 1.79 | 0.1 | 6839 | 15 |
| when was april 15 | 0.96 | 0.5 | 4131 | 50 |
| how long ago was april 15th | 0.5 | 1 | 770 | 47 |
| april 15th national day | 0.15 | 1 | 1362 | 76 |
| historical events on april 15 | 0.89 | 0.1 | 2067 | 78 |
| how many days ago was april 15th | 0.95 | 0.2 | 2017 | 10 |
| what is april 15th | 0.96 | 1 | 4729 | 72 |
| what historical events happened on april 15 | 0.73 | 0.7 | 9691 | 21 |
