Datang: I, Yang Mu, Use the Vaccine to Save the Empress at the Beginning

Yang Mu transformed into a down-and-out county boy and activated the all-things exchange system. He started by using cowpox vaccine to save the Tang Dynasty, which was overrun by smallpox, which shocked Li Shimin. It even attracted the peerless empress Wu Zhao's heart, and the ambiguity heated up. From epidemic prevention to the industrial revolution, Yang Mu used modern technology to subvert the Tang Dynasty, achieve supreme power, and dominate the country with beauties.