On the Meteorite Event and the Wall Fall Event in Qin Dynasty.

The meteorite event in Qin dynasty occurred in the summer of the first emperor's thirty-six years (2 1 1 years ago), and the sinking event occurred in the autumn of the first emperor's thirty-six years (21/years ago). Of course, Qin Shihuang died in the thirty-seventh year of the first emperor (2 10 years ago). Therefore, it can be concluded that "this year" in the text and "this year" as we understand it are synonyms in ancient and modern times. Don't dwell on this, in this case, it is ok to determine the year, and although the prophecy is recorded in the historical records, Sima Qian has no personal experience, and God knows whether it is artificial or not.