A teacher and children prepare for a game to stand eggs on end in a kindergarten in Donghai County, east China's Jiangsu Province, March 20, 2017, to greet the Chinese traditional calendar date 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/Zhang Kaihu)