A segregation of the races
Nelson Mandela stood up against apartheid and got thrown in jail. He had many chances to be released but he wouldn't go because the whites where gonna make him tell everybody to stop standing up for what they believe in but finally they let him go. He later got elected to be the first Black president for South Africa.
How did they stop Apartheid?
Many governments all throughout South Africa started opposing Apartheid and then finally they let Nelson Mandela out of jail and that ended Apartheid.