A woman shows a copy of Jiaozi banknotes, the first Chinese paper money, which appeared around the 11th century during the Song Dynasty (960-1279), at the Jiaozi financial museum in Chengdu, Southwest China's Sichuan Province on May 11, 2022. The museum, with an exhibition area of 1,800 square meters, opened on the same day, and it is the first professional museum in China themed around paper money. Photo: cnsphoto