August 28, 1979 They are exchanging written agreements to promote cultural exchange and hydropower information. Source
Deng Xiaoping and US ambassador Leonard Woodcock in 1979
朱宪民，农村小学的劳动课，1968
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Paper-cuttings from the War Against US Aggression and Aid Vietnam
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孙宗慰, 剧场, 1948
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Art historian James Cahill at the Taipei National Palace Museum storage site in 1959
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He Long inspects the Zhuzhou airplane engine factory in 1960
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Mao visits Jinggangshan in 1965
May 1965 Source
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Postcards of the Manchuria coketown of Fushun from the early 1940s
The source has more details at each image. Source
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A collection: Archaeologists in Xinjiang in 1963
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宋文治, 水电站, 1972
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Everyday Life in Mao's China 