Nkrumah was the first African head of state to promote the concept of Pan-Africanism, which he had been introduced to during his studies at Lincoln University, Pennsylvania in the United States, at the time when Marcus Garvey was becoming famous for his "Back to Africa Movement". Nkrumah merged the teachings of Garvey, Martin Luther King Jr. and the naturalised Ghanaian scholar W. E. B. Du Bois into the formation of 1960s Ghana.