The area was primarily [[American Jews|Jewish]] in the early 20th century, with a large Italian American element. It became largely black by 1920,with the migration of African Americans from [[The South]] and the Caribbean. Many new arrivals had little education and came from isolated rural areas. They lacked elementary training in the most simple processes of good health and sanitation and urban living. With a death rate 42% greater than the remainder of New York City, Harlem became a center for quack healers. A large number of 'storefront' churches were established, but most of the ministers were probably charlatans of some kind. Harlem was one of the leading prostitution centers of Manhattan throughout the 1920s.<ref> Osofsky (1965)</ref> | The area was primarily [[American Jews|Jewish]] in the early 20th century, with a large Italian American element. It became largely black by 1920,with the migration of African Americans from [[The South]] and the Caribbean. Many new arrivals had little education and came from isolated rural areas. They lacked elementary training in the most simple processes of good health and sanitation and urban living. With a death rate 42% greater than the remainder of New York City, Harlem became a center for quack healers. A large number of 'storefront' churches were established, but most of the ministers were probably charlatans of some kind. Harlem was one of the leading prostitution centers of Manhattan throughout the 1920s.<ref> Osofsky (1965)</ref> |