Keyword Analysis & Research: when did the roman empire start

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did the roman empire start	1.44	0.1	6008	34	31
when	0.71	0.4	2939	89	4
did	0.07	0.7	2163	5	3
the	1.17	0.5	9774	56	3
roman	1.5	0.2	963	2	5
empire	0.66	1	630	86	6
start	0.81	0.6	1592	77	5

Keyword	CPC	PCC	Volume	Score
when did the roman empire start	0.34	0.4	2219	80