when was the mercator projection invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the mercator projection invented	0.12	0.4	7856	14	41
when	0.82	0.4	6727	55	4
was	0.5	0.5	6115	4	3
the	1.22	0.4	3863	70	3
mercator	0.72	0.7	6318	54	8
projection	0.49	0.4	3570	29	10
invented	0.51	0.8	8828	28	8

Keyword	CPC	PCC	Volume	Score
when was the mercator projection invented	1.36	0.5	6343	73
who invented the mercator map projection	1	0.2	5605	63
how was the mercator projection made	1.66	0.5	5024	20
what was the mercator projection	0.31	0.1	6936	44
mercator projection world history	1.97	0.7	7711	58
the mercator projection is named for whom	0.58	0.9	7116	97
describe the mercator projection	1.56	0.8	7495	81
why is the mercator projection popular	0.45	0.9	2371	86
mercator projection world maps history	0.8	0.1	6479	78
purpose of mercator projection	1.94	0.1	7265	63
mercator projection world facts	1.27	0.9	653	54
what kind of projection is mercator	1.43	0.6	9663	50
what type of projection is mercator	0.04	0.3	718	58