The UK has a history of non-white immigration with Liverpool having the oldest Black population in the country dating back to at least the 1730s during the period of the African slave trade. During this period it is estimated the Afro-Caribbean population of Great Britain was 10,000 to 15,000 which later declined due to the abolition of slavery. The UK also has the oldest Chinese community in Europe, dating to the arrival of Chinese seamen in the 19th century. In 1950 there were probably fewer than 20,000 non-white residents in Britain, almost all born overseas. In 1951 there were an estimated 94,500 people living in Britain who had been born in South Asia, China, Africa and the Caribbean, just under 0.2 per cent of the UK population. By 1961 this number had more than quadrupled to 384,000, just over 0.7 per cent of the United Kingdom population.