Kuahuqiao site

It was first discovered in the early 1970s during the construction of a local brick factory, which destroyed a large part of the site.

The site is located near the place where the Qiantang River flows into Hangzhou Bay, and it has a history of 8,000 years.

Thus, it was established that paddy rice cultivation was already practised in China dating back 7,700 years.

According to Gary Crawford, of the University of Toronto at Mississauga, this new evidence is "an important contribution to understanding agricultural origins in the rice regions of East Asia.

"[4] A very early dugout canoe was revealed; this demonstrates the earliest technology for constructing this type of watercraft in China, and perhaps the world.