Were the Portuguese the first to introduce Christianity to African slaves?

[ReallyCoolPerson]

I'm doing research on African slaves' religion and was told that Africans first learned of Christianity by the Portuguese BEFORE coming to the New World. I thought that African slaves first learned of Christianity AFTER being taken from their homeland.

Were the Portuguese the 1st to introduce Christianity to African slaves and if so, where can I find the source of that information?

 

[noname]

I'm guessing it was the Portuguese by Camões, but now the gov everywhere killed it and wants to oblige people to write differently, as a "unique" way.

The "unique" is Brazil's Portuguese writing type, most just ignore and write how they learned (Camões).