Grafting day
June 7, 2124 AD, the first day of the college entrance examination.
All later history books began with this sentence. Not because it is important, but because before that day, humans used the AD calendar to keep track of time; after that day, humans used the "grafting calendar" to keep track of time. A. D. Became an abandoned unit, like a book that has been read and stuffed back into the bookshelf, never to be opened again.
But people at the time didn't know that.
People at the time only knew that it was a terribly hot summer.
"Civility assessment failed."
"Knowledge does not enter the blood, and learning stops on paper."
"In accordance with Article 72 of the "Civilization Conservation Regulations", a grafting experiment of 'unity of knowledge and action' will be carried out on this civilization."
"Wen Dao Will, 1142nd Observation Area."