"Tianyuan" refers to the four-column heavenly stems in the ancient calendar of China, and also refers to the star position in the center of the chessboard in Go.

The so-called China Tianyuan City refers to the city located in the center of Chinese territory.

There is still controversy about Tianyuan City in China. Generally speaking, there are three kinds of sayings: Xi 'an, Zhengzhou and Wuhan.

(1) Xi 'an

At present, the standard time in China is Beijing time, not from Beijing. The National Timing Center of Chinese Academy of Sciences is located at the foot of Lishan Mountain in Donglindong District, Xi City. Combined with Xi 'an's important position in the history of China, it is generally believed that Xi 'an is the city of Tianyuan in China.

(2) Zhengzhou

Henan is the land of the Central Plains, and it has been a battleground for military strategists since ancient times. Zhengzhou, with dense traffic, is one of the largest railway hubs in China. So some people say that Zhengzhou is the city of Tianyuan in China.

③ Wuhan

The largest city and central city in Central China, and the megacity in the middle and lower reaches of the Yangtze River in China. Because of its greatest feature, some people call Wuhan the Tianyuan City of China.

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