First I must stress that slavery was no white men's invention and was at those days so widespread, it was all over the world. It has been recorded that the white men came to African coasts to trade. They brought articles that the local people very much wanted, as they did not make them. Mirrors, iron axes, beads, cloth. As it was African practice to war amongst tribes and kill and capture the weaker one, slavery was everywhere. The white traders did not come for slaves, but accepted them as payment, because there was not much other things that they could use. Slavery was encouraged by the local Africa rulers. The Jewish bible reminds us that the Jews were slaves in Egypt, an Africa country. From centuries of sunshine all skins turn dark, so Jesus being sunburnt is no great revelation. Why your fear of the wrong coloring by medieval artists? Serfdom was the word used for European slavery, it was everywhere. To accuse one nation or group of nations, or some people, other than your own of being the culprits is shortsighted to say the least. A man who knows not what goes on in the world, and thinks that his own group of race or color is unique, needs more education. Besides that, it is of no importance whatsoever color Jesus was, it is His teachings that are important, nothing else matters. Mistakes, crimes even, done by our ancestors and those that went before us, against humanity should not be forgotten, so as not to be repeated by us. If you want Jesus to be dark skinned, have it so. If your neighbour wants Him to be white, what do you care?