| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| period between 1918 and 1939 | 0.52 | 0.6 | 3882 | 26 |
| the interwar period 1918 1939 | 1.07 | 0.1 | 9682 | 84 |
| what time period was 1918 | 0.2 | 0.5 | 2423 | 65 |
| what era was 1918 | 1.31 | 0.1 | 120 | 91 |
| interwar period 1919 to 1939 timeline | 1.47 | 0.5 | 3601 | 42 |
| time period of wwi | 0.5 | 0.4 | 6377 | 28 |
| period between ww1 and ww2 | 1.76 | 0.6 | 291 | 41 |
| world war i period | 0.92 | 0.3 | 3704 | 21 |
| what century was 1939 | 1.05 | 0.3 | 604 | 66 |
| how long has it been since 1918 | 1.93 | 0.6 | 7440 | 28 |
| how many years was 1918 | 1.7 | 0.2 | 3688 | 85 |
| world war 1 period | 1.58 | 0.6 | 1684 | 45 |
| modern period 1914 - 1945 | 0.19 | 0.5 | 4654 | 36 |
| time period of wwii | 1.65 | 1 | 6763 | 15 |
| world war i time period | 0.17 | 0.5 | 4176 | 47 |
| the period of ww2 | 0.37 | 0.7 | 2406 | 9 |
| how long ago was 1918 | 1.89 | 0.4 | 1748 | 3 |
| what century is 1918 | 1.68 | 0.2 | 3275 | 29 |
| world war ii period | 0.24 | 0.4 | 2955 | 89 |
| how long ago was 1939 | 1.77 | 0.3 | 7274 | 91 |
| what years were wwi | 1.6 | 0.5 | 3792 | 36 |
| what era was 1917 | 1.38 | 0.1 | 2322 | 28 |
