Post-WW II labor-challenged Britain faced the daunting task of rebuilding. Reaching out to its former colonies attracted a large number of Africans from the Carribean. On June 22,1948 the Empire Windrush passenger ship docked at Tilbury with 492 Jamaicans. Brixton, now a prominently black district, is where the majority settled. Continuing well into the 1960s, there was a mass migration of Caribbean workers from throughout the British West Indies, especially Jamaica. The labor of African-descended immigrants was a major factor in Britain’s post-war economic success. Modern-day hospitals and transportation, especially railway development, might not exist without African immigrant contributions. Many of London’s black residents (10.6% of the total population in 2007) are the descendants of these immigrants.