| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the origin of race based slavery | 0.87 | 0.9 | 208 | 97 |
| how did slavery become race based | 0.21 | 0.7 | 7224 | 29 |
| who created race based slavery | 1.54 | 0.4 | 669 | 99 |
| what is race based slavery | 1.56 | 0.8 | 826 | 48 |
| race based slavery definition | 0.06 | 0.4 | 3961 | 46 |
| was slavery based on race | 1.36 | 0.7 | 8255 | 41 |
| what race started slavery | 0.3 | 0.9 | 9258 | 81 |
| what race invented slavery | 1.04 | 0.6 | 3290 | 78 |
| slavery and the concept of race | 0.4 | 0.7 | 6710 | 4 |
| slavery and the making of race | 0.25 | 0.9 | 4229 | 30 |
| why was american slavery based on race | 1.1 | 0.4 | 4909 | 82 |
| what came first slavery or race | 0.32 | 0.7 | 7366 | 7 |
| how did racial slavery start | 1.62 | 0.4 | 4024 | 20 |
| slavery race and ideology | 1.98 | 0.5 | 1150 | 36 |
| where did racial slavery first originate | 0.92 | 0.3 | 1556 | 89 |
| what race was slaves | 1.56 | 0.3 | 3174 | 13 |
| races in era of slavery | 0.32 | 0.7 | 1826 | 29 |
| what nationality started slavery | 1.43 | 1 | 2483 | 68 |
