1. Resist U.S. Aggression and Aid Korea
On July 10, 1950, the "Committee of the Chinese People's Movement to Oppose the U.S. Invasion of Taiwan and Korea" was established, and the movement to resist U.S. aggression and aid Korea began. In October, the Chinese People's Volunteers went to fight in North Korea, kicking off the war to resist U.S. aggression and aid Korea.
During the War to Resist U.S. Aggression and Aid Korea, the Volunteer Army received full support from the entire People's Liberation Army and the Chinese people, and received cooperation from the socialist camp headed by the Soviet Union.
In July 1953, the two sides signed the "Korean Armistice Agreement", which marked the successful end of the war to resist U.S. aggression and aid Korea. In 1958, all volunteers withdrew to China. October 25th is the Remembrance Day to Resist U.S. Aggression and Aid Korea.
2. China launched its first artificial satellite
On April 24, 1970, China successfully launched its first artificial satellite. The perigee altitude of the satellite orbit was 436KM. The apogee height is 2384km.
The angle between the orbital plane and the Earth's equator is 68.5°, and it takes 114 minutes to circle the Earth. The satellite has a mass of 173kg and plays the music "Dongfanghong" at a frequency of 20.009MHz.
3. The Tangshan Earthquake
At 3:42:53.8 on July 28, 1976, an earthquake occurred in the Fengnan area of ??Tangshan, Hebei Province, China (118.2° east longitude, 39.6° north latitude) The magnitude of the earthquake was 7.8 on the Richter scale (7.5 on the moment magnitude), with an epicenter intensity of 11 degrees, a focal depth of 12 kilometers, and a duration of about 23 seconds.
The earthquake caused 242,769 deaths and 164,851 serious injuries, ranking second in the world’s earthquake fatalities in the 20th century, second only to the Haiyuan earthquake.
4. Reform and opening up
On July 15, 1979, the central government officially approved the implementation of special policies and flexible measures in foreign economic activities by Guangdong and Fujian provinces, marking the beginning of reform and opening up. The historic pace of opening up to the outside world has become a basic national policy of China. China's road to becoming a strong country is a powerful driving force for the development of the socialist cause.
Reform and opening up established a socialist market economic system. In 1992, the Southern Talk announced that China's reform had entered a new stage. Reform and opening up have brought about tremendous changes in China.
5. The launch of the spacecraft Shenzhou 5
The Shenzhou 5 manned spacecraft is the fifth in the "Shenzhou" series of spacecraft and is the first manned spacecraft launched by China. aircraft.
It was launched from the Jiuquan Satellite Launch Center at 9:00 on October 15, 2003, sending astronaut Yang Liwei and a Chinese flag with special significance into space. At 6:23 on October 16, 2003 return.
This spacecraft marks China becoming the third country to send humans into space after the former Soviet Union (Russia) and the United States. It marks another milestone in my country's aerospace technology.
Baidu Encyclopedia - Chronology of Major Events