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

Combo photo shows a view of Yan'an, northwest China's Shaanxi Province in the 1960s (top, file photo) and on April 25, 2019 (bottom, 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)