Early British colonies struggled at Jamestown until John Smith established farming and trade with local natives. Tobacco later saved the colony and fueled the use of indentured servants and African slaves to work tobacco plantations. Discontent among poor colonists and natives led to Bacon's Rebellion. Puritans established the Massachusetts Bay Colony with intertwined politics and religion. King Philip's War erupted as natives fought colonists throughout New England. The Middle Colonies grew through trade while Pennsylvania offered religious freedom under Quaker William Penn. Tensions rose as the colonies expanded westward during the French and Indian War.