ongzhou, Li Ke used discovered that in this narrow street, cavalry lost both maneuverability and impact power, and their large size made them more vulnerable to casualties. 。Shi Jingtang will definit...In May of 884 AD, on the official road fifty li southwest of Bianzhou (modern-day Kaifeng)e of imperial affairs, had just finished his dinner, he received an order from "[Imperial Figure]" to immediately go to the Lín Dé Hall to meet with him. 。The sudden summons surprised Zheng Zhi. As he...