After completing an activist training program conducted by the American Friends Service Committee (AFSC), Rustin moved to Harlem in 1937 and began studying at City College of New York. There he became involved in efforts to defend and free the Scottsboro Boys, nine young black men in Alabama who were accused of raping two white women. He joined the Young Communist League for a small period of time in 1936, before becoming disillusioned with the party. Soon after arriving in New York City, he became a member of Fifteenth Street Meeting of the Religious Society of Friends (Quakers).