In 1807, Britain prohibited the slave trade and, in 1833, abolished slavery in its colonies. British ships sometimes intercepted slave traders in the Caribbean, and some ships were wrecked off the coast of these islands. In 1837, the "Esperança," a Portuguese slaver, was wrecked off East Caicos, one of the larger islands. While the crew and 220 captive Africans survived the shipwreck, 18 Africans died before the survivors were taken to Nassau. Africans from this ship may have been among the 189 liberated Africans whom the British colonists settled in the Turks and Caicos from 1833 to 1840.