| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best time periods in history | 1.58 | 0.3 | 4821 | 45 |
| best time periods in american history | 0.02 | 0.1 | 3781 | 56 |
| what is the best time period in history | 0.15 | 0.4 | 973 | 22 |
| best periods in history | 0.94 | 0.7 | 2883 | 31 |
| popular time periods in history | 0.97 | 1 | 5114 | 64 |
| best time in history | 0.53 | 0.3 | 7186 | 61 |
| important time periods in history | 0.58 | 0.4 | 1327 | 21 |
| most famous time periods in history | 1.47 | 0.2 | 5992 | 72 |
| favorite time period in history | 0.03 | 0.9 | 25 | 10 |
| most important periods in history | 0.76 | 0.1 | 8722 | 85 |
| interesting time periods in history | 1.36 | 0.6 | 5052 | 70 |
| coolest time periods in history | 0.72 | 0.8 | 2232 | 68 |
| important time periods in american history | 1.41 | 0.5 | 5337 | 26 |
| coolest historical time periods | 1.19 | 0.4 | 2201 | 37 |
| major time periods in history | 0.19 | 0.5 | 9840 | 38 |
| most famous time periods | 1.61 | 0.6 | 9169 | 7 |
| best time in american history | 1.25 | 0.2 | 1700 | 38 |
| most interesting periods in history | 0.71 | 0.3 | 5651 | 81 |
| interesting historical time periods | 0.48 | 0.2 | 4485 | 35 |
| most interesting time periods | 1.41 | 0.2 | 9094 | 42 |
| what is your favorite historical period | 0.88 | 0.3 | 9739 | 27 |
