Starting with a Fiefdom, I Build a Technological Kingdom

[Infrastructure + Cool Articles + Black Technology] Engineering dog Li Yue, the most disliked ninth prince of the Great Xia Dynasty, was demoted to the barren northern fiefdom and was never allowed to return to Beijing. Everyone thought his life was over. Unexpectedly, Li Yue used modern knowledge and spent five years to build the barren fief into a city of technology and wealth. Cement roads, spirits, soap, glass... All kinds of cross-era products emerge in endlessly. Until that day, the prince who was patrolling the border accidentally broke into his "otherworldly kingdom". The prince was shocked: "Ninth brother, you call this... A barren land?" "What is this road that is solid on the rock? Do you use this glass mirror worth thousands of gold as a wall sticker?" "His... Who is this iron lump (steam engine) that spits fire?!" The news spread back to the capital, and the government and the public were shocked! Let's take a look at how the most useless prince relies on black technology to become rich and powerful, attracting princesses and generals to bow to him!