The National Party made the new laws, and at first, everybody was okay with it. Nobody seemed to have no concerns about this Segregation law, because it wasn't put into effect yet. Some people socialized while they still could.
Stage 3, Revolution
People(mostly blacks) started to complain about the new laws. The African National Congress Started to complain about National Party Rule, When they started segregation of race, causing them to separate schools, residential areas, and public facilities.
Stage Four: Recovery
You hit your head pretty hard.
When the laws became unfair they wanted change. The ANC (African National congress) Started to organize protests, and march out for their rights.
When No change has happened, The situation starts to escalate. Clashes started to erupt between Blacks and police. One was the Massacre of Sharpeville, in which 60 people died, and more than 180 people were injured. As more and more fights broke out, It led up to 575 people killed, and most of them were blacks.
The Blacks Now demanded the release of Mandela starting a new protest. This time, He got released eventually. The protesters started to cool down, and tend to their injuries (if not fatal)