March 13, 1947: Chiang Kai-shek orders Hu Zongnan to lead 250,000 forces and attack liberated areas in northern Shaanxi

March 13, 1972: China and Britain sign a joint communiqué in Beijing and decide that from now on, the diplomatic representatives of the two sides shall be upgraded to ambassadors

March 13, 1983: The CPC Central Committee holds a meeting attended by tens of thousands of people in Beijing to solemnly commemorate the centenary of the death of KarlMarx

March 13, 1985: The CPC Central Committee makes "a decision on the reform of science and technology systems"

The "Decision" pointed out: modern science and technology is the most active and decisive factor in new social productive forces, and that the whole Party must attach great importance and give its full attention to the large role of science and technology.