when did glasses become popular

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did glasses become popular	1.19	0.9	4368	88	31
when	1.4	0.3	3254	96	4
did	0.83	0.6	7302	80	3
glasses	0.78	0.7	7796	70	7
become	0.67	0.5	4624	28	6
popular	0.27	0.9	583	86	7

Keyword	CPC	PCC	Volume	Score
when did glasses become popular	0.6	0.9	3711	13
when did sunglasses become popular	1.21	0.3	1683	96
when did sunglasses became popular	1.75	1	562	37
when did stained glass become popular	1.53	0.1	9263	57
how did aviator glasses become popular	0.06	0.9	2322	49
when did aviator glasses become popular	0.75	1	474	75
when did sliding glass doors become popular	0.34	1	9771	16
when did glasses become common	1.42	0.1	7420	6
when did eyeglasses become common	0.98	0.6	420	80
when did people start wearing glasses	0.12	0.5	4082	85
when were glasses first used	0.83	0.4	3336	45
when did glasses get invented	0.18	0.6	3934	88
how long have glasses been around	0.95	0.2	9661	13
when were glasses made	0.25	0.7	5036	41
when were glasses invented in america	0.13	0.3	567	76
the history of glasses	1.68	0.8	5197	74
when were sunglasses popularized	0.98	0.9	8289	77
what year were glasses invented	1.78	0.2	6637	87