nging back and forth: "Theoretically speaking, space and time are two dimensions, and they cannot be converted into each other. It's like we can't say that one hour equals 5 kilometers or 1000 kilomet...In May of 884 AD, on the official road fifty li southwest of Bianzhou (modern-day Kaifeng)face. At this moment, where was the mighty Khan of the Khitan who shook the worldLi Ke said coldly: "Such a breach of faith, Khan, are you not afraid that the heroes of the world will laugh at you"Li...