On This Day — May 23, 1989: Defacing of Mao portrait: Mao Zedong’s portrait on the Tiananmen Gate is defaced by Yu Zhijian, Yu Dongyue, and Lu Decheng, who throw paint-filled eggs at it. The defaced portrait of Mao is quickly removed and replaced with another, identical one. Students hand over the individuals who defaced the portrait to the authorities.
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