yehudayona: He did have an army, you know. He enslaved the Native Americans and stole all of their gold. This influx of gold destroyed the economy of basically all of Africa, directly leading to Africa changing their main export from gold to people.
Had Columbus treated the Native Americans with more respect, we may have never seen African slavery either. He still would have wiped out the Native Americans by disease, but that’s not really his fault.
Oh, and he did lots of other terrible things that are not appropriate for mention on this board.