How Could I, a Servant, Become the Great Pillar?

A doctor of chemical engineering traveled through the Ming Dynasty and became a servant who was about to beg for food. No identity, no background, no money. Only one brain with modern technology. Liquor, soap, glass, steel, firearms... Others traveled across time to compete for the world, while he traveled across time to build an industrial chain. From the wine shop servant to Daemingzhushi, there are only a hundred patents in between.