Sub-Saharan Africa (1st European Contact)

Reference

Excerpts from Books and Wikipedia

"From the late 15th century, Europeans joined the slave trade. One could say the Portuguese led in partnership with other Europeans. That includes the triangular trade, with the Portuguese initially acquiring slaves through trade and later by force as part of the Atlantic slave trade. They transported enslaved West, Central, and Southern Africans overseas. Subsequently, European colonization of Africa developed rapidly from around 10% (1870) to over 90% (1914) in the Scramble for Africa (1881–1914)." [Wikipedia]