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.