Maryland was founded by English Catholics seeking religious freedom led by George Calvert. It was carefully planned to avoid failure. Tobacco became a major cash crop, though most colonists struggled as indentured servants on farms. In 1649, Maryland passed the Toleration Act allowing religious freedom for Christians. Colonists then moved south, establishing the Carolinas with a written constitution. The colony became too large and split into North and South Carolina. Georgia was founded to gain control of the area, settling debtors who had to defend the land but could start anew, though slavery was eventually allowed and plantations increased. Settlers also moved westward for more land.