During the 1700s the economy boomed, based largely on sugar and other crops for export such as coffee, cotton and indigo. All these crops were worked by black slaves, who lived short and often brutal lives with no rights, being the property of a small planter-class. In the 18th century, slaves ran away and joined the Maroons in increasing numbers, and resulted in The First Maroon War (1728 – 1739/40), which ended in stalemate. The British government sued for peace, and signed treaties with the Leeward Maroons led by Cudjoe and Accompong in 1739, and the Windward Maroons led by Quao and Queen Nanny in 1740.