The British again captured Martinique in 1809, and held it until 1814. In 1813, a hurricane killed 3,000 people in Martinique. During Napoleon's 100 Days in 1815, he abolished the slave trade. At the same time the British briefly re-occupied Martinique. The British, who had abolished the slave trade in their empire in 1807, forced Napoleon's successor, Louis XVIII to retain the proscription, though it did not become truly effective until 1831.