why did the west commit to multiculturalism?

[Centurion1]

I bet slavery ended about the same time as European tribes turned into a christianity. So starting from "Romans" at 4th century and ending to Vikings at 12th century and Finnic tribes on 13th century.Europe was converted and mass slavery abolished. A new form of slavery aka plantasion slavery was developed in 15th century and abolished at 19th century.

Um not exactly.

Serfdom and feudalism just replaced it. It was cheaper and more productive than slavery.

EDIT: Fragony is a perfect example of the ability of an internet denizen simply not admitting when they are wrong. The presence of facts mean nothing.