19 1 1 year, ancient China and ancient history turned a new page. The feudal monarchy that lasted for thousands of years finally came to an end. 10 June 10 Wuchang Uprising, the Manchu Dynasty fell. The Republic of China was founded, and Sun Yat-sen became the interim president of the Republic of China.

The country is changing, and China's mathematics is brewing a new breakthrough. 19 1 1 In the autumn of, Jiang Lifu, a young man who came out of Wenzhou, set foot on the springboard of an American cruise ship. The leader of mathematics in China in the first half of the 20th century began his mathematics career. It is also 19 1 1 year, 101October 28th (the seventh day of the ninth lunar month). A baby boy was born in Chenjia Mansion, Xiatang Street, xiushui county, Jiaxing District. He is the great mathematician Chen Shengshen in the future.

Jiang Lifu and Chen Shengshen are the sources of a tributary of the modern mathematics river in China. Later, it was Jiang Lifu who became the research leader of Chen Shengshen's geometry. Although in 19 1 1, they are not related to each other.