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Timeline: The Tiananmen Square crackdown of 1989

Ousted General Secretary of the Communist Party, Hu Yaobang, dies at age 73 on April 15, 1989. The next day, thousands of students gather at Tiananmen Square to mourn him -- Hu had become a symbol of reform for the student movement. A week later thousands more marched to Tiananmen Square -- the start of an occupation that would end in a tragic showdown.

Ousted General Secretary of the Communist Party, Hu Yaobang, dies at age 73 on April 15, 1989. The next day, thousands of students gather at Tiananmen Square to mourn him -- Hu had become a symbol of reform for the student movement. A week later thousands more marched to Tiananmen Square -- the start of an occupation that would end in a tragic showdown.