How many people died when Europeans immigrated to America?

White people in 13 states in the eastern United States slaughtered American Indians in order to expand their territory, and about 1 100 million Indians died in the massacre. /kloc-Before the 0/9th century, the population of India was more than 30 million, but now less than 800,000 Indians live in the barren "reservation" divided by the United States.