| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| primary sources definition history | 1.7 | 0.4 | 6094 | 17 | 34 |
| primary | 1.15 | 0.4 | 7311 | 52 | 7 |
| sources | 0.68 | 0.4 | 8547 | 44 | 7 |
| definition | 1.83 | 0.4 | 3522 | 34 | 10 |
| history | 1.92 | 0.7 | 7834 | 5 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| primary sources definition history | 0.77 | 0.1 | 948 | 78 |
