Keyword Analysis & Research: when did the 15th amendment happen

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did the 15th amendment happen	1.27	0.5	5804	63	34
when	1.85	0.4	9679	91	4
did	1.4	0.7	8261	72	3
the	1.12	0.5	8873	43	3
15th	1.04	0.5	9107	76	4
amendment	0.23	0.3	3539	68	9
happen	1.94	0.9	5500	95	6

Keyword	CPC	PCC	Volume	Score
when did the 15th amendment happen	1.38	0.5	8476	27