Once the dynasty fell, the sixth prince Zhu Su was demoted to Ningyuan in the north.
What greeted him was a dilapidated earthen city, three hundred old and weak soldiers, an empty granary - and the prairie cavalry looking eagerly outside the city.
Everyone thought he was dead.
But no one knew that this down-and-out prince's mind contained engineering knowledge that far exceeded this era.
The first blast furnace, the first furnace of manganese steel, the first firecracker, the first artillery...
He started from scratch and used steel and gunpowder to rewrite the rules of the game.
Three years later, three thousand iron guards broke through the royal court and strangled Shi Yanran.
Ten years later, steam roared, railways criss-crossed, ironclad ships cut through the waves, and cannons were aimed at the entire world.
Fifty years later, flags that never set were planted all over the world. The old emperor stood on the top of the empire, looking across the earth to the sea of stars.
They wanted him to die from the bitter cold of the Far North.
But he let the entire era be buried with him.
[Infrastructure Farming + Industrial Revolution + Global Struggle for Hegemony]