A herdsman's son plays in front of a Mongolian yurt in Ewenki Autonomous Banner, north China's Inner Mongolia Autonomous Region, July 1, 2017. Three autonomous banners were established in the areas inhabited by the Oroqen, Ewenki and Daur ethnic groups in the Inner Mongolia Autonomous Region, home to a mix of ethnic minorities. Inner Mongolia, the first province-level autonomous region established in China, celebrated its 70th birthday this year. (Xinhua/Lian Zhen)