Classicly

The Journal of Negro History,  Volume 1 written by various authors. Excerpts from the book.

In the early history of America there were three types of settlements—the French, Spanish, and English. In the French Provinces the teachings of the "Code Noir" made it incumbent upon the masters to teach the slaves, at least to read, in order, of course, that they might read the Bible; and in the Spanish districts the Latin custom of miscegenation prevented the rise of objections to the teaching of slaves, in case there should be any who cared to instruct the Negroes.