Datang: the Industrial Revolution Began with the Teaching of Jinyang

Unit+Ghosts++Laughing Abs Li Ke originally wanted to live as a free prince until the end. Who would have known that his beautiful sister Si Zi was also a time traveler! From then on, Datang's painting style completely went astray. Li Ke: "Sister, let's make a soap for fun?" Si Zi: "Wait a minute, I've finished drawing the principle of the steam engine." Li Shimin: "Ke'er, my throne..." Li Ke picked up Si Zi and ran away: "Father, don't ask, I'm just asking because my sister wants to do scientific research and has no time!"