| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| why was the royal road important | 0.39 | 0.4 | 5231 | 34 |
| why was the persian royal road important | 1.91 | 0.6 | 4372 | 29 |
| what was the royal road used for | 0.1 | 0.1 | 2022 | 18 |
| facts about the royal road | 0.82 | 0.8 | 2285 | 17 |
| why was the national road important | 1.47 | 0.5 | 9159 | 24 |
| what did the great royal road connect | 0.72 | 0.7 | 7213 | 40 |
| why was the national road significant | 1.66 | 1 | 8709 | 10 |
| royal road history definition | 1.92 | 0.9 | 450 | 72 |
| why road is important | 0.98 | 0.6 | 8179 | 16 |
| royal road definition world history | 0.34 | 0.9 | 1066 | 85 |
| how does royal road work | 0.69 | 0.6 | 8650 | 52 |
| royal road world history | 0.16 | 0.1 | 3990 | 61 |
| the importance of roads | 1.88 | 0.1 | 6610 | 54 |
| importance of the national road | 1.53 | 0.5 | 6851 | 94 |
| definition of royal road | 1.65 | 0.9 | 6254 | 37 |
