Even decades after his death in 1972, Kwame Nkrumah remains a symbol of the movement for African independence that occurred during the 1950s and 1960s. After completing his studies in the United States, where he was exposed to the teachings of activists Marcus Garvey and W.E.B. Du Bois, Nkrumah returned to Ghana. There, he campaigned and protested for an end to British rule in Ghana. He was monitored by the FBI and even jailed for his actions and beliefs. His push for independence became the model for the rest of the African continent to do the same. He is considered one of the most influential and authoritative Pan-Africanists of the 20th century.