Slavery began in North America in the 1600s and involved the buying and selling of people who were then forced to work without pay and were not allowed to leave. There were different types of slaves including chattel slaves who could be traded and had no rights, forced labor slaves who worked under threat of punishment, and serfdom slaves who were tied to the land and required permission for activities. Debt bondage slavery also occurred where people were kept as slaves to pay off debts passed down through generations. Field slaves worked long hours in harsh conditions compared to house slaves who had better treatment and living standards.