In this combo photo, the upper part taken by Gu Shoukang and released on Nov. 30, 1979 shows a view of Zedang Township in southwest China's Tibet Autonomous Region; the lower part is an aerial photo taken by Cering Lungbu on Nov. 26, 2020 showing a view of the same township. On May 23, 1951, the Agreement of the Central People's Government and the Local Government of Tibet on Measures for the Peaceful Liberation of Tibet (17-Article Agreement) was signed, officially proclaiming the peaceful liberation of Tibet. The year 2021 marks the 70th anniversary of the historic event. (Xinhua)
