The Valongo Wharf (Portuguese: Cais do Valongo) is an old dock located in the port area of Rio de Janeiro, between the current Coelho e Castro and Sacadura Cabral streets. Built in 1811, it was the site of landing and trading of enslaved Africans until 1831, with the blockade of Africa banning the Atlantic slave trade to Brazil (but clandestine trade continued until 1888). During the twenty years of its operation, between 500 thousand and one million slaves landed at Valongo. Brazil received about 4.9 million slaves through the Atlantic trade.