The French named their new colony La Grenade, and the economy was initially based on sugar cane and indigo, worked by African slaves. The French established a capital known as Fort Royal (later St. George's). To shelter from hurricanes, the French navy would often take refuge in the capital's natural harbour, as no nearby French islands had a natural harbour to compare with that of Fort Royal. The British captured Grenada during the Seven Years' War in 1762.