According to archaeological findings, in which cultural period did the earliest tenon-mortise structure appear in China?

As a part of China's traditional culture, tenons and mortises can be traced back to the Neolithic Age 7000 years ago. The wooden houses of the original inhabitants of Hemudu Cultural Site in Yuyao City, Zhejiang Province can be confirmed. It is not difficult to find out from a large number of unearthed wooden components that the ancestors at that time had begun to use tenon-mortise structure, and in the subsequent development history, tenon-mortise structure gradually developed with the development of ancient wooden buildings in China.

Mortise and tenon are called the "soul" of mahogany furniture. The tenons and tenons on the wooden components are simply engaged, and the wooden components are combined. Because of the different shapes of connecting components, the ever-changing combination mode is derived, which makes mahogany furniture achieve the perfect unity of function and structure.