Photos record childhood moments of Chinese kids in past four decades

File photo taken on May 28, 2001 shows children preparing dance to celebrate International Children's Day in Mongolian Autonomous County of Dorbod, northeast China's Heilongjiang Province. This set of 41 old photos, taken from 1978 to 2018 by year, pictorially record childhood moments of Chinese kids in the past four decades. (Xinhua/Zhou Que)