196410 June 16 China's first atomic bomb exploded successfully,1967 June 17 China's first hydrogen bomb exploded successfully, and1970 China's first artificial satellite was successfully launched on April 24th. China's "two bombs and one satellite" is a brilliant cause created by the Chinese nation in the second half of the 20th century. It has greatly increased China's voice in the international arena.

2. The return of Hong Kong and Macao.

On July 1997, People's Republic of China (PRC) resumed the exercise of sovereignty over Hong Kong, ending the century-long British colonial rule in Hong Kong. People's Republic of China (PRC) resumed the exercise of sovereignty over Macao, ending Portuguese colonial rule in Macao for more than 400 years.

3. Qinghai-Tibet Railway.

Qinghai-Tibet Railway is a landmark project to implement the strategy of developing the western region and one of the four major projects in China in the new century. The highway starts from Xining in Qinghai in the east and ends in Lhasa in the west, with a total length of 1956 km. Total length of Golmud-Lhasa section of Qinghai-Tibet Railway 1 142 km. Among them, the newly-built line110km was started on June 29th, 2006 and officially opened to traffic on July 60th, 2006.

4. Join the WTO.

200111The Fourth Ministerial Conference of the World Trade Organization deliberated and adopted China's decision to join the WTO by consensus in Doha, Qatar.

5. Beijing Olympic Games.

The 29th Summer Olympic Games was held in Beijing, China on August 8th, 2008. A total of 204 participating countries and regions, more than 60,000 athletes, coaches and officials participated. With a total score of 565,438+0 gold, 265,438+0 silver and 28 bronze, China became the first Asian country to top the gold medal list in Olympic history.