Photos record childhood moments of Chinese kids in past four decades

File photo taken in May of 1978 shows children taking part in a game of tug-of-war competition at a kindergarten in Sanmenxia City, central China's Henan 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)