In order to help Zheng, Qin attacked and defeated Jin at the Battle of Li (栎, in present-day Yongji, Shanxi).
Qin poisoned the river from upstream, killing many soldiers of Jin and its allies, who were forced to retreat.
[1][2] In 1976, Duke Jing's tomb was discovered in Fengxiang County in Baoji, Shaanxi Province.
[4] Shaped like an inverted pyramid, the tomb is as deep as an eight-story building and is the size of a palace.
[2] This is the largest number of human sacrifice victims discovered in a Chinese tomb dating from after the Western Zhou dynasty.