In Shakespeare's Othello, the titular Moor of Venice plows Desdemona, the daughter of a nobleman who hates the fact that his daughter is banging a Moor. Othello's white lieutenant gets jealous and plots against them. In the end, Othello thinks she's cheating on him and brutally murders her.
I got thinking: this was perhaps the first instance of "Burn the Coal, Pay the Toll" in history. It was written over four hundred years ago, just as European exploration and colonization started to bring whites and blacks into contact en masse. I remember in high school we learned that this was actually an "anti-racist" play. But, I think the Bard had a different moral in mind.