On December 1, 1948, the People's Bank of China was established in Shijiazhuang, Hebei, which, on the same day, issued the first set of Renminbi. The picture shows the site of the People's Bank of China in Hebei.[Photo/people.com.cn]

On June 18, 1949, the Association of Chinese Scientific Workers in US held its inaugural meeting in Pittsburgh. Taken in 1996, this group photo is of members of the association, who have become academicians of the Chinese Academy of Sciences or the Chinese Academy of Engineering.[Photo/Xinhua]

The picture shows their signature after taking the group photo. [Photo/Xinhua]