This question is a little hard for me to form but here goes. When speaking on slavery, I have had people mention the Moors as being a part of the slave trade. How true is this, what impact did it have on the slave trade in the Americas? Why is the European/American slave trade equated to racism and the Moors slave trade isn't?
Not to discourage other answers, but this has been discussed in previous threads that may be of interest, e.g.:
and
https://www.reddit.com/r/AskHistorians/comments/5gv0ug/it_is_estimated_that_a_minimum_of_18_million/