Mandela This lead to his original imprisonment which

Mandela
was a participant in the African National Congress (ANC) in 1943 a group of
young Africans who got together to fight for their rights, by starting
boycotts, strikes and disobeying the laws of South Africa. They started
influencing people who had no voice, the people who couldn’t stand for
themselves and say whatever they wanted to say. The Sharpeville Massacre in
1960 can be seen as a turning point in the attitude of the ANC, around 69
innocent black citizens were gunned down during a peaceful protest. In 1960
once the ANC got banned Mandela went underground and created “the Spear of
Nation” which was a military army that was ready to fight for the Umkhontoat
ANC guerilla movement. This lead to his original imprisonment which was a
sentence of 5 years but he escaped. 
Following his recapture in 1964, he received a life sentence for treason
and sabotage. He and his companions were sent to Robben Island prison where
they began their long punishment.