After Being Blind for Three Years, How Did I Become the Master of the Ming Dynasty?

Zhao Yan traveled through the Hongwu period of the Ming Dynasty and was blind at the beginning. Fortunately, he awakened to the teaching and educating sign-in system, and his teaching became stronger! Bite! Congratulations to the host for teaching the world map! Signing in for today's class was successful! Bite! Congratulations to the host Professor Barefoot Doctor's Handbook! Today's lecture sign-in successfully improved 100 kilograms of rice seeds! Bite! Congratulations to the host for teaching junior high school chemistry! If you successfully sign in for today's class, you'll get a thousand taels of gold! … The more Zhao Yan teaches, the more nourishing his life becomes, but why do students always want to rebel? "Sir, what is this black powder? How does it compare with the power of the muskets in the palace?" "Sir, how should I make this TNT? Can it blow up the Forbidden City?" "Sir, is this world map serious?" … Zhao Yan: You are a bit dangerous! However, when Zhao Yan signed for three years, his eyesight recovered, and the first scene when he opened his eyes was that Zhu Di, the general who conquered the north, blasted open the gate to the west with artillery fire. "Disciple Zhu Biao and his father Zhu Yuanzhang respectfully invite you to come out!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.