nopaio.com 2018.10.05
| 1947 Labour Day |
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| 1948 Labour Day |
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| 1949 Labour Day |
  
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| 1949 The 28th Anniversary of Chinese Communist Party |
  
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| 1949 Asiatic & Australasian Congress of the World Federation of Trade Unions |
  
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| 1950 Signing of Sino-Soviet Treaty of Friendship, Alliance and Mutual Assistance |
  
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| 1951 The 30th Anniversary of the Communist Party of China |
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| 1952 International Labour Day |
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| 1953 The 35th Anniversary of the October Revolution |
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| 1954 USSR Economic and Cultural Exhibition, Beijing |
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| 1955 The 5th Anniversary of Sino-USSR Treaty |
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| 1956 The 8th National Communist Party Congress |
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| 1957 The 40th Anniversary of Russian Revolution |
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| 1958 The 110th Anniversary of "Communist Manifesto" |
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| 1958 Organization of Socialist Countries' Postal Administrations Conference, Moscow |
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| 1959 Sino-Czech Co-operation in Postage Stamp Production |
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| 1960 The 10th Anniversary of Sino-Soviet Treaty |
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| 1960 The 15th Anniversary of Hungarian Liberation |
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| 1960 The 15th Anniversary of Liberation of Czechoslovakia |
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| 1960 The 15th Anniversary of Liberation of Korea |
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| 1960 The 15th Anniversary of N. Vietnam Republic |
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| 1960 The 70th Anniversary of the Birth of Dr. Norman Bethune |
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| 1961 The 90th Anniversary of Paris Commune |
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| 1961 The 40th Anniversary of Chinese Communist Party |
  
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| 1961 The 40th Anniversary of Mongolian People's Revolution |
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| 1962 The 80th Anniversary of the Birth of Lu Hsun |
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| 1962 Support for Cuba |
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| 1962 Support for Algeria |
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| 1962 The 45th Anniversary of Russian Revolution |
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| 1962 The 50th Anniversary of Albanian Independence |
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| 1963 The 4th Anniversary of Cuban Revolution |
  
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| 1963 Liberation of South Vietnam |
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| 1964 The 5th Anniversary of Cuban Revolution |
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| 1964 African Freedom Day |
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| 1964 Labour Day |
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| 1964 Yenan-Shrine of the Chinese Revolution |
  
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| 1964 South Vietnam Victory Campaign |
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| 1964 The 100th Anniversary of the First International |
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| 1964 The 20th Anniversary of Liberation of Albania |
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| 1965 The 10th Anniversary of Bandung Conference |
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