"The Benevolent Doctor Saves the World Through Time Travel"

Time Travel + Modern Technology + Development of Ancient Times

Is there a protagonist who travels back to ancient times and uses modern technology to develop agriculture, reform commerce, and build industry?

The Tomb of Fusheng Mr. Jiu the Only One in Everlasting Gu Hengsheng

I Am a Medical Sage, Traveling Across Nine States to Save People's Lives.

I just wish there would be no suffering in the world, I would rather put medicine on the shelf and be born in the dust