This is a long story. It once settled like gravel in the undercurrent of history and no one knew about it. However, once discovered, it can immediately stir up the world and affect the fate of all things. Rumor has it that its origin is very ancient, so ancient that it starts from the beginning of the creation of heaven and earth. Maybe you have never heard of it or even think it is ridiculous, so just treat it as my crazy talk and laugh it off.
(False article, the overall background is to locate the Tang Dynasty. For the convenience of writing, many points are inconsistent with historical facts. I hope the party will not correct it)