Keyword Analysis & Research: which era in human history came first

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
which era in human history came first	0.34	0.1	6618	12	37
which	0.91	0.1	1987	29	5
era	1.37	0.8	2399	44	3
in	1.41	0.9	1368	62	2
human	1.82	0.6	1562	23	5
history	0.78	0.3	3994	68	7
came	1.72	0.1	6817	62	4
first	1.33	0.3	2951	90	5

Keyword	CPC	PCC	Volume	Score
which era in human history came first	0.06	0.5	2967	17
in what era did humans first appear	1.23	0.3	141	56
earliest period of human history	0.35	0.8	5513	10
modern humans first appeared during what era	0.79	0.1	2286	9
when did the human era start	1.5	0.7	783	6
first humans era and period	1.91	0.3	3450	76
during which period did humans first appear	1.42	0.4	2089	84
time periods of human history	0.96	0.7	110	34
humans first appeared during which period	1.73	0.8	8737	95
what time period did humans appear	1.08	0.4	5862	36