Great changes have taken place in China's former revolutionary base Yan'an

Combo photo shows a view along the Nanhe River in Yan'an, northwest China's Shaanxi Province on Dec. 26, 1983 (L, file photo) and on May 5, 2019 (R, taken by Liu Xiao) respectively. Yan'an, a former revolutionary base of the Communist Party of China (CPC), is no longer labeled "poor," as its last two impoverished counties have shaken off poverty, the Shaanxi provincial government announced Tuesday. (Xinhua)