we know of ONE instance until the 15th century in Christianity. PRIOR TO THAT it was all Islamic from the 7th century onwards.
And in your history lesson you skipped a paragraph
The Mormons took all of that history of it, and added to their religon to this day, as if it actually was what Moses "said" happened.
BUT, Moses never wrote it, nor was it implied in that period.
You have some real deep seated racial issues dude.
Anciently speaking, there is no way of knowing how this story was viewed by those reading it a couple thousand years ago.
What we do know is for the last 1000 years at least, to Christian monks/ministers etc it wasn't approached as just a metaphor. It was approached as an actual incident back in time somewhere.
It was used for centuries by black/brown coloured Christian Spaniards to support their slavery of Africans.
American Christians carried over the story as real from the English and Spanish.
American Christians continued to believe the story as real long after slavery was abolished by law.
American Christian ministers taught the story of the mark of Cain being black skin till they were accused of being racists.
American Christian ministers didn't stop the teaching because they saw it as a metaphor, they stopped because they didn't want to be called racists.
Now that we have a new generation of Christian ministers that believe so as not to promote any type of racism/difference of the colours, they now have turned how the Bible was once believed into a totally different view.
They now teach we're all equal in God's eyes. No one is different from any perspective. To not regard the Bible where it specifies differences. To actually ignore those spots and don't even debate them.
Yet racists like you break the rules of modern Christianity to prove your racists beliefs while you use there rules to call foul at others. Some more of your racist hypocrisy happening there.