Villagers celebrate Serfs' Emancipation Day in Zhangmai Village of Bayi Township of Nyingchi, southwest China's Tibet Autonomous Region, March 27, 2017. People here celebrated Serfs' Emancipation Day. March 28 was designated as the day to mark the freeing of 1 million people, or 90 percent of the region's population at that time, from the feudal serf system in 1959. (Xinhua/Zhang Rufeng)