If you visit a small German Town called Regen*****urg (not far from Munich, BMW has a plant there, there used to be a Messerschmidt engine plant, US bombed the town in WWII), you will find a Catholic Church build around 1350 AD. The Tower is taller than Tian1 An1 Meng2.
Neither Ming nor Qing emperors can bring advanced technology to China.
Neither Ming nor Qing emperors can bring advanced technology to China.