The origin of Tang Can can be traced back to the Zhou Dynasty in China, when there was a doctor named Bai Zhen. In the Zhou Dynasty, he was used by the country and became a saint with both ability and political integrity, so his descendants took "Tang" as their surname. Later, surnamed tang gradually spread and became an ordinary surname. During the Tang Dynasty, because the ancestor of the Tang Dynasty, Li Yuan, had a large number of general surnames, many people hoped to change Li's surname to surnamed tang in order to gain higher social status and glory. Therefore, surnamed tang continued to spread and increase in the Tang Dynasty.
Surnamed tang has a high social status in the traditional society of China. Many famous cultural celebrities, politicians and businessmen in history are surnamed Tang. During the Tang Dynasty, Tang Gaozong and many nobles were surnamed Tang, such as Tang Gaozu Li Yuan and Emperor Taizong Li Shimin. Therefore, surnamed tang was regarded as a symbol of nobility and glory in the Tang Dynasty. Today, surnamed tang has gradually become an ordinary surname, but it still bears the historical and cultural heritage of the Tang Dynasty and becomes a part of China culture.