Another important discovery was artifacts in the shape of balls, earrings and bubbles, which were made of jet, a type of a compact velvet-black coal that takes a good polish and is often used for jewelry. Scientific analysis shows that it came from coalfields in the west of Fushun, Liaoning, which is known as the "capital of coal" due to its long history of mining.

Since the site used to be by the ancient Hunhe River, and Fushun is located on the upper reaches of the river, archaeologists estimate that the jet possibly traveled from what is now Fushun to Xinle along the river, or came to Xinle through the exchange of goods.

Tourists to the museum can visit the sites where artifacts were unearthed, and re-creations of clan meetings, the killing of prey and the making of stone tools.

Duan Chengjiao, head of the museum's tour guide team, highlights Xinle pottery vessels. "From many of the vessels on exhibit, visitors can see that people from 7,000 years ago already possessed skillful craftsmanship," Duan says.

Recently, the museum has been building new storehouses to protect artifacts and cabinets to display them. Temperature and humidity in the new storehouses and cabinets can be adjusted for better protection.

Educational activities have been organized to promote public understanding of the site. These include summer camps for children, during which they can visit the museum, try on re-creations of ancient clothing, observe insects and the night sky, and sleep in tents, while they learn about history and nature.

In the future, the Xinle archaeological park will expand to include exhibition venues, an educational center, and interactive spaces where visitors can experience archaeological excavations for themselves. These areas will showcase the daily lives of the Xinle people, highlighting daily activities such as fishing, hunting, and gathering fruit.

"The park will offer a wider range of functional areas to cater to diverse interests, providing opportunities for both learning and leisure," Zeng says.