What was one way that white people kept control of their slaves?

Because white's could earn lots of money by making them work for them without being paid. African Americans were treated really badly and they thought that they were the most useless things. which I totally don't agree, because if they worked for them and they needed that how could the Africans be useless!

amsw2. You should not make the mistake of thinking that the 'white people' invented slavery, or even that they formed the majority.

This reprehensible practice has been in existence for thousands of years, and today it is probable that a higher proportion of the world's population is held in slavery, than in any previous age.

Much bondage bound not only the slave, but his generations to come.

Today, slavery is still very active on the east coast of Africa, with destinations in the oil states. Sex slavery must be counted in today's total.