By 1700, English colonies were studded along the Atlantic shore from what would become Maine to what would become South Carolina. Northern colonies coexisted with Algonkian-speaking Indian societies that had few slaves and little interest in buying and selling captives; southern colonies coexisted with former Mississippian societies with many slaves and considerable experience in trading them. Roughly speaking, the boundary between these two types of society was Chesapeake Bay, not far from what would become the boundary between slave and non-slave states in the United States.