Datang: Time travel in two months, wait online, hurry up!

A countdown to time travel suddenly appeared in Li Ke's mind, telling him that in two months he would travel to the tenth year of Zhenguan in the Tang Dynasty.
He directly posted a post on Zhihu asking for help, and Zhihu bosses offered advice one after another.
Travelers must learn the three major divine books, all textbooks from elementary school to university, and all technologies such as steelmaking, thermal weapons, shipbuilding, and steam engines.
Li Ke used his photo memory ability to study crazily. After two months, he traveled smoothly and used the knowledge and technology he learned to develop his power crazily!
A few years later, he has already controlled most of the wealth in the world, the only controller of the army with hot weapons, and a fleet that sweeps the world. The Tang Dynasty is already an empire on which the sun never sets!
Li Shimin: "Ke'er is the prince who most resembles me, I want to pass it on to Ke'er!"
Li Zhi: "I am far inferior to the third brother!"
Wu Meiniang: "As long as His Royal Highness is willing, I would like to serve His Royal Highness for the rest of my life, without complaint or regret..."
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