What was the new nation formed in China during the Yuan Dynasty?

In the middle of the 7th century, a large number of Persian and Arab businessmen came to China coastal cities such as Guangzhou and Quanzhou by sea and land, and settled in Chang 'an and Kaifeng in the mainland. /kloc-In the 3rd century, the Mongolian army went west, and a large number of Central Asian Muslims (commonly known as Muslims) moved to China, mainly Central Asian immigrants, Persians and Arabs who believed in Islam. Later, they absorbed ethnic elements such as Han, Mongolian and Uygur, and gradually formed a unified nation-Hui.