Slaves were used in the American colonies to perform labor because A. there were not enough workers.
America needed workers, but there were not enough people willing to perform such difficult jobs for basically no money at all, which is why they brought slaves who had to work for free.
The focal issues and occasions concerning American Indians started when a few hostages of Columbus were conveyed to the court of Spanish. Nearness of many societies in America came about to culture and society distinction in Indian tribes. This is on account of each culture needed to develop the best, subsequently, the opposition was presented. Inhabitation of new world acculturated societies prompted the assorted variety of way of life among Indians and this came about to change of social occasions.