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What evidence is there of racism before colonialism?
Removed by modFrom what I understand the modern concept of race arose during the age of colonialism, but before that time, was there any documented accounts of racism against black people by white people?
Right but they didn't all have a concept of race. For instance, Ancient Greeks and Romans though that Northern Africa were civilized, but too prone to tyranny. On the other hand Germans and other Europeans were barbarians who enjoyed too much freedom from civilization. There were prejudices, but skin color didn't explicitly tie into it as much as culture and religion.
Language is also very important here as well, but I suppose that could be considered cultural. If I recall correctly, the Greeks used the term "barbarian" to denote any non-Greek-speaking peoples.