| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| oldest dated book | 1.67 | 0.9 | 3602 | 56 | 17 |
| oldest | 1.58 | 0.4 | 75 | 36 | 6 |
| dated | 0.97 | 0.6 | 889 | 90 | 5 |
| book | 1.06 | 0.9 | 2860 | 99 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| oldest dated book | 1.12 | 0.8 | 6455 | 24 |
| oldest dated rock | 1.42 | 0.7 | 593 | 83 |
| oldest dated printed book | 1.24 | 0.6 | 3793 | 56 |
| how old are the oldest rocks dated on earth | 1.97 | 0.9 | 5101 | 73 |
| oldest rock ever dated | 1.32 | 0.8 | 7529 | 89 |
| oldest radiometrically dated earth rock | 0.2 | 0.3 | 8548 | 62 |
| oldest carbon dated rock | 0.88 | 0.8 | 3650 | 78 |
| what is the oldest printed book | 1.12 | 0.9 | 384 | 28 |
| oldest printed book in the world | 1.66 | 0.3 | 5350 | 73 |
| oldest printed book still in existence | 1.5 | 0.4 | 3811 | 73 |
| oldest book ever written | 0.83 | 0.1 | 430 | 82 |
| what is the oldest known book | 1.38 | 0.6 | 2562 | 77 |
| what is the oldest written book | 0.87 | 1 | 961 | 19 |
