Children play the Chinese game of cuju, which is considered the earliest form of football, during an event to celebrate the upcoming Qingming Festival in Qingdao, East China's Shandong Province on April 1, 2026. The Qingming Festival, or Tomb-Sweeping Day, which falls on April 5 this year, is a traditional festival during which people pay tribute to the dead and worship their ancestors. Photo: VCG