European migrations to the Americas in the 17th century were driven by promises of land and rights as English subjects. The Jamestown colony struggled at first due to disease, lack of food, and gold seeking instead of farming. Tobacco eventually made the colony prosperous. Indentured servitude and headrights were used to attract laborers, while slavery gradually replaced indentured servants and the slave trade grew dramatically. Bacon's Rebellion in 1676 exposed class tensions between elites and landless colonists.