When Did The Portuguese Colonize Guinea-Bissau?

When Did The Portuguese Colonize Guinea-Bissau? 1446-47 – First Portuguese arrive; subsequently administered as part of the Portuguese Cape Verde Islands, the Guinea area becomes important in the slave-trade. 1879 – Guinea-Bissau becomes a separate colony. When was Guinea-Bissau colonized by Portugal? Preceded by Succeeded by Kaabu Guinea-Bissau Why did Portugal colonize Guinea-Bissau? Bissau was