2.3.21—— The Chinese Academy of Sciences took over the four research institutes of chemistry, botany, animal science and engineering of Shanghai Academia Sinica, the preparatory offices of two research institutes of medicine and pharmacy, two research institutes of physiology and medicine of Shanghai Peiping Research Institute and the crystallography laboratory of the Institute of Physics.
3. 16 July-World War II led to the vacuum period of 1938 after the third World Cup. From June 24th to July16th, the 4th World Cup was held in Brazil. Uruguay beat Brazil 2-0-0 in the final.
4.8 1 —— The Civil Aviation Administration of the Central People's Government of China decided to officially sail civil aviation. First of all, Tianjin-Hankou-Guangzhou and Tianjin-Hankou-Chongqing have two direct flights and four regional flights. At the same time, there are three direct flights between China and the Soviet Union. The opening of civil aviation is an important beginning of civil aviation construction in new China.
5. 10 June19-US forces captured Pyongyang; Chinese people's Volunteer Army's 38th Army took the lead in crossing the Yalu River from Ji 'an (now Ji 'an City) to fight in the DPRK. The first battle after entering Korea started on1October 25th, 1950.
On the same day, the 40th Army of the Volunteers 1 18 Division launched a surprise attack on the "United Nations Army" in Beizhen, which took more than an hour to recapture Wenjing. The Allies did not expect that when the Allies crossed the 38th parallel and entered North China, the South Korean army would attack, and the Allies did not get any information that the China army had crossed the Yalu River before. The allies were caught off guard and retreated to the south of Qingchuan River.
Refer to the above? Baidu Encyclopedia-1950
Refer to the above? Baidu Encyclopedia-Korean War