Marcus Mosiah Garvey Jr. (17 August 1887 – 10 June 1940) was a Jamaican political activist. He was the founder and first President-General of the Universal Negro Improvement Association and African Communities League (UNIA-ACL, commonly known as UNIA), through which he declared himself Provisional President of Africa. Garvey was ideologically a black nationalist and Pan-Africanist. His ideas came to be known as Garveyism.
Garvey was born into a moderately prosperous Afro-Jamaican family in Saint Ann's Bay and was apprenticed into the print trade as a teenager. Working in Kingston, he became involved in trade unionism. He later lived briefly in Costa Rica, Panama, and England. On returning to Jamaica, he founded the UNIA in 1914. In 1916, he moved to the United States and established a UNIA branch in New York City's Harlem district. Emphasizing unity between Africans and the African diaspora, he campaigned for an end to European colonial rule in Africa and advocated the political unification of the continent. He envisioned a unified Africa as a one-party state, governed by himself, that would enact laws to ensure black racial purity.