Children mark Chunfen across China

Children play a game to stand eggs on end at a kindergarten in Zaoqiang County, north China's Hebei Province, March 21, 2018, also the day of "Chunfen". Chunfen, which literally means Spring Equinox or Vernal Equinox, falls on the day when the sun is exactly at the celestial latitude of zero degrees. (Xinhua/Zhu Xudong)