Mass genocide in africa in africa by settlers
The american indians were almost wiped out, then placed in confined areas
The jewish extermination during lenin and stalins day was as bad as hitlers
The crusaders wiped out zillions of muslims if they wouldn't convert (ever wonder where their hatred stems from)
In ghenghis khans day the equivalent of whole countries was wiped out at a time
The romans would kill, enslave, make slaves fight for them, and also toy with them in public entertainment
Shit, there's more!