What did Dehong learn from An Overview of Revolutionary Culture?

Understand the history of human geography in Dehong area.

Dehong's "place names follow Dai names, meaning the land in the lower reaches of the Nujiang River".

Dehong area is one of the areas where ancient human activities took place.

In recent years, the fossils of ancient human teeth, Neolithic cultural sites and Neolithic tools discovered in Nanguba show that there were ancient human activities in Dehong as early as ten thousand years ago.

It is these ancient humans who created Dehong's ancient civilization.