Keyword Analysis & Research: when was the printing press invented date

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the printing press invented date	0.44	0.3	5949	99	41
when	0.2	1	2967	93	4
was	0.14	0.9	2657	64	3
the	0.56	0.2	2519	6	3
printing	1.32	0.8	2770	18	8
press	1.29	1	8167	73	5
invented	0.81	0.6	8595	43	8
date	1.14	0.4	830	73	4

Keyword	CPC	PCC	Volume	Score
when was the printing press invented date	0.98	0.5	70	81
printing press invented date	1.24	1	8194	83
gutenberg printing press date invented	1.71	0.8	1548	33