when did portugal start slavery

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did portugal start slavery	0.98	0.9	654	44	31
when	0.93	0.7	3092	60	4
did	0.62	0.8	1750	53	3
portugal	1.27	0.9	1154	91	8
start	0.52	0.3	564	71	5
slavery	0.85	0.1	9767	50	7

Keyword	CPC	PCC	Volume	Score
when did portugal start slavery	1.69	0.2	4221	62
when did portugal abolish slavery	0.56	0.9	6247	39
was there slavery in portugal	1.44	0.1	5820	20
when did portugal outlaw slavery	0.3	0.2	8972	46
when did slavery end in portugal	1.49	0.3	3402	83
when did the portuguese slave trade start	0.24	0.4	2265	72
when did portugal ban slavery	1.88	0.2	5499	6
when did the portuguese abolish slavery	0.12	0.7	7297	91
was portugal the first to have slaves	1.85	1	6289	16
when was slavery abolished in portugal	1.32	0.9	9546	70
were there slaves in portugal	0.68	0.8	6856	36
abolition of slavery in portugal	0.97	0.7	4104	75
did the portuguese start the slave trade	1.4	1	4701	5
when did slavery start in brazil	1	0.6	4457	90
slavery under the portuguese empire	0.1	0.3	4474	23
when did portugal end the slave trade	1.06	0.6	1705	46
portuguese slavery in brazil	1.12	0.1	4547	58
when did slavery begin in brazil	1.47	0.2	5473	95
portugal and the slave trade	0.44	1	7650	69
portuguese and african slavery	0.94	0.5	9767	70
did the portuguese have slaves	1.63	0.1	9543	52