What is the root cause of black racism?

I think its from anger and violence. When you're fighting someone think of the reasons, try to come to a conclusion. Don't comment on color, race or sexuality. Don't be personal with the comments either. Thats all I can tell, Bye soldiers~!

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.