On this day, 29 years ago, on February 22, 1996 (January 4, 1996 of the lunar calendar), archaeology confirmed that there was also a mysterious No. 4 pit in the Terracotta Army Mausoleum of Qin Shi Huang. On February 22, 1996, archaeology confirmed that there was also a mysterious No. 4 pit in the Terracotta Army in the Mausoleum of Qin Shi Huang.