People's Liberation Army Astronaut Corps twelve were chosen as astronaut candidates. The Astronaut Corps was established in January 1998 and the twelve along with two PLAAF trainees sent to Yuri Gagarin Cosmonaut Training Center in 1996 forms Chinese Group 1. Seven pilots entered the Astronaut Corps in May 2010 as the Group 2. In 2014, Group 1 astronauts Wu Jie, Li Qinglong, Chen Quan, Zhao Chuandong, and Pan Zhanchun retired from the Astronaut Corps due to age; none of them had flown in a mission. The Astronaut Corps was part of the General Armaments Department until GAD's disbandment in January 2016. As part of the
Chinese as a foreign language China. After this period, only Cantonese and Mandarin remained as the most influential variants of Chinese, the former due to the importance of maritime trade in Guangzhou and the emergence of Hong Kong as a key economy in East Asia. Chinese departments in the West were largely centered on Cantonese due to British colonial rule over Hong Kong until the opening of communist-ruled China starting in the 1970s. The teaching of Chinese as a foreign language in the People's Republic of China started in 1950 at Tsinghua University, initially serving students from Eastern Europe. Starting with Bulgaria in 1952, China