| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| historical sources come from | 1.1 | 0.8 | 2975 | 37 | 28 |
| historical | 0.26 | 1 | 1089 | 18 | 10 |
| sources | 0.46 | 0.1 | 5012 | 88 | 7 |
| come | 0.2 | 0.8 | 2633 | 75 | 4 |
| from | 0.8 | 0.8 | 5282 | 61 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| historical sources come from | 1.4 | 0.7 | 3041 | 3 |
