| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ordovices | 0.43 | 0.5 | 7529 | 63 |
| ordovices tribe | 0.54 | 0.8 | 8389 | 10 |
| ordovices in roman times | 1.34 | 1 | 1364 | 34 |
| life in the ordovician period | 1.57 | 0.6 | 1206 | 82 |
| what was the ordovician period | 0.18 | 0.1 | 7385 | 67 |
| facts about the ordovician period | 0.09 | 0.6 | 9959 | 7 |
| middle ordovician time period | 1.73 | 1 | 2791 | 36 |
