when was pi day invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was pi day invented	1.69	1	1380	93	24
when	0.61	0.1	9943	86	4
was	1.68	0.5	2643	21	3
pi	1.21	0.3	3466	3	2
day	0.13	0.9	8340	62	3
invented	1.83	0.1	3377	85	8

Keyword	CPC	PCC	Volume	Score
when was pi day invented	1.18	0.5	9781	48
who invented pi day	0.36	0.9	5948	24
why was pi day invented	1.91	0.2	5883	19
when was pi day	1.01	0.1	7837	84
when was pi day first celebrated	1.95	0.1	637	73
what year was pi day first celebrated	0.11	0.7	2865	55
pi day history wiki	0.76	0.1	7127	54
pi day history 1	1.96	0.4	4100	28
what year did they call pi day	0.8	1	9953	61
history of pi day videos	0.68	0.7	6217	26
when was pi invented	0.93	0.6	1372	27
international pi day history	0.25	0.7	4842	30
pi day history for kids	1.01	0.7	6174	1
what day is pi day	1.87	0.4	9987	21
facts about pi day	0.23	0.9	531	16
what date is pi day	1.38	0.1	7241	48
pi day history 12	1.2	0.7	9241	15
what are some pi day facts	1.01	1	1896	93