Nelson Mandela was a South African citizen who was the first black president in South Africa. He was in jail for 27 years and let out because so many people were demanding to let him out. He led non violent protests.
Born in 1929 Martin Luther King Jr was a pastor at his church that his family had run. Martin grew up to be a pastor in a Montgomery Alabama church and eventually got in to politics. He started a civil rights movement to end segregation. He led non violent protests just like Gandhi and he wanted to fill up the jails.
Gandhi started out as a lawyer in England then moved on to South Africa. He eventually moved back to India to get their independence and was put in jail a total of 6 years. He led non violent movements to protest give India its independence.