Why is Jamaica so African?

The ethnogenesis of the Black Jamaican people stemmed from the Atlantic slave trade of the 16th century, when enslaved Africans were transported as slaves to Jamaica and other parts of the Americas. The first Africans to arrive in Jamaica came in 1513 from the Iberian Peninsula.

Are all Jamaican’s black?

Almost all Jamaicans are of African descent. The original inhabitants are Arawaks.