纪录片《颐和园》1956年

https://www.youtube.com/watch?v=Y7Lhm0JinOQ&t=542s

Underground living areas at the Daqing oilfield in 1960

Source

Mao goes swimming at Beidaihe in 1954

Source

Hong Kong 1978. Refugee housing. New Territories, water shortage

https://www.youtube.com/watch?v=7dMzyALtarg

Building the Danjiangjkou Reservoir in 1959

Source

大江之源， 1974

Source

Nordodom Shinaouk state visit to China in December 1960

https://www.youtube.com/watch?v=2LNLTSq-pLA https://www.youtube.com/watch?v=AEvLvImQ_Co https://www.youtube.com/watch?v=grP75FkW1CM

Sino-Soviet border conflict of 1969

https://www.youtube.com/watch?v=2eK8SKMc7I8

Mao meets Che Guevara on November 19, 1960

Source

Building the Chengdu-Chongqing Railroad

1950-1952 Source

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