The correct answers are:
Tiananmen Square: Was a series a protest that happened in Beijing in 1989. The movement was suppressed by the Chinese Premier Li Peng declared martial law and fired at the demonstrators that tried to block the advance of militaries. This is the famous video where a man stands peacefully in front of a military tank.
The fall of the Berlin Wall: The fall of the Berlin Wall happened in November 1989. The wall symbolized the lack of freedom under communism and the fall of it meant the end of the iron curtain and the win of freedom.
Anti-Apartheid movement: Was a movement that supported nonwhite South Africans that were persecuted by the policy of apartheid. Nelson Mandela was the main oppositionist of apartheid
