when did the afl join the nfl

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did the afl join the nfl	0.47	1	9772	42	29
when	1.53	0.5	256	5	4
did	0.84	0.7	7546	58	3
the	0.2	0.1	7577	58	3
afl	0.68	0.1	1867	77	3
join	0.86	0.2	1656	83	4
the	0.84	0.3	2810	62	3
nfl	1.22	0.7	4798	68	3

Keyword	CPC	PCC	Volume	Score
when did the afl join the nfl	1.13	1	1361	50
when did afl and nfl join	0.88	0.7	4668	59
when did the afl and nfl combine	0.94	0.3	4753	46
when did the afl start	0.64	0.3	8723	49
when did the afl begin	0.22	0.6	2015	33
history of the nfl and afl	0.67	0.7	1068	46
what year did the afl start	1.83	0.7	7430	69
when did the vfl become the afl	1.7	0.2	9756	75
when did the afl form	1.79	0.6	690	28
nfl afl football history	0.93	0.1	7552	24
when did afl become afc	0.15	0.2	9678	93
when did afl originate	1.46	0.4	191	85
when was afl started	0.4	0.7	4355	23
how long has the afl been around	1.76	1	3712	68
what is afl us history	1.7	0.8	7702	68