Photo taken on April 25, 2019 shows the early United Nations publications, part of the collection of China's Chongqing Library, at the "homecoming" exhibition of early UN publications, at the UN headquarters in New York. A "homecoming" exhibition of early UN publications, part of the collection of China's Chongqing Library, was launched at the UN headquarters in New York Thursday. As one of UN's depository libraries, the Chongqing Library, located in southwest China's Chongqing Municipality, "brought home" these literatures, either physically or through pictures, which date back as early as to the period of the League of Nations in the 1920s. (Xinhua/Li Muzi)