Memes

There's a difference between colonialism and conquest. Conquest was much much more common in the past than colonialism. Before modern European colonialism, the only people who had made colonial efforts had been the Greeks (with small city colonies in places like Libya, for example), and the Norse, with their colonization of Greenland and their attempt to colonize what is today Newfoundland. Otherwise, the rest was conquest. There's a significant difference between the two.