| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what pandemic happened in 1820 | 0.92 | 0.8 | 2173 | 52 |
| what pandemic happened in 1620 | 0.77 | 0.1 | 3860 | 53 |
| what pandemic happened in 1720 | 0.42 | 0.3 | 1955 | 49 |
| what pandemic happened in 1920 | 0.57 | 0.5 | 5326 | 70 |
| pandemic that happened at 1820 | 1.36 | 0.1 | 7032 | 52 |
| what epidemic happened in 1820 | 0.57 | 0.8 | 208 | 11 |
| what virus happened in 1820 | 1.75 | 0.3 | 3922 | 22 |
| what disease happened in 1820 | 1.81 | 0.5 | 915 | 83 |
| what plague happened in 1820 | 0.83 | 0.8 | 8706 | 94 |
| what pandemic was in 1620 | 1.91 | 0.7 | 3206 | 94 |
| what pandemic was in 1720 | 0.98 | 0.6 | 6631 | 38 |
| what pandemic was in 1920 | 0.5 | 0.1 | 8411 | 73 |
| what virus was in 1820 | 1.32 | 0.2 | 284 | 86 |
| what plague was in 1820 | 1.47 | 0.1 | 4892 | 46 |
| pandemic in the 1800s | 1.15 | 0.2 | 9393 | 82 |
| what sickness was in 1820 | 1.96 | 0.9 | 1210 | 91 |
| pandemics that happened in the late 1900s | 0.29 | 0.4 | 5912 | 3 |
| pandemic in early 1900 | 0.99 | 0.5 | 1739 | 22 |
| the pandemic of 1902 | 0.64 | 0.5 | 9740 | 62 |
| the pandemic of 1900 | 0.46 | 0.8 | 9505 | 6 |
