Hey!
I did my best but be careful tho, there's might be some mistakes.
Racial segregation is a practice that consist of physically dividing people of differents colors.
This system has a strong racist and discriminatory connotation.
It is only during the XXth century that the USA and South Africa put an end to this.
It's as a result of the uprising of the people segregated by this system that authorities ended up making all places available for everyone without distinction.
Certain people chose to protest peacefully like Martin Luther King while others opted for an armed conflict like Malcom X.
Good luck!