when was writing invented in mesopotamia

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was writing invented in mesopotamia	0.12	0.6	7250	52	40
when	1.86	0.5	8650	19	4
was	1.64	0.5	5840	64	3
writing	0.18	0.9	6837	94	7
invented	0.02	0.3	2851	7	8
in	1.41	0.1	6438	50	2
mesopotamia	1.92	0.1	7107	55	11

Keyword	CPC	PCC	Volume	Score
when was writing invented in mesopotamia	0.66	0.3	5312	50
writing in mesopotamia was invented to	0.06	1	7065	89
why was writing invented in mesopotamia	2	0.8	8638	34
what was the writing in mesopotamia called	1.35	0.7	8743	100
ancient writing in mesopotamia	1.87	0.7	2581	51
how was writing used in mesopotamia	0.81	0.7	6597	70
first writing system in mesopotamia	0.65	0.1	2359	26
development of writing in mesopotamia	0.89	0.4	927	40
form of writing in ancient mesopotamia	0.57	0.2	7695	47
what was the mesopotamian writing	1.41	0.8	5603	27
what form of writing did mesopotamia use	1.84	0.3	3851	53
what type of writing did mesopotamia have	1.67	0.4	9772	54
what was mesopotamian writing called	0.4	1	6908	100
how did mesopotamians originally use writing	1.72	0.4	4565	61