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What are Xu Guangqi's concrete achievements and contributions in all aspects of life?
Xu Guangqi, a minister of rites in Jiajing period of Ming Dynasty, devoted his life to the study of mathematics, calendar and water conservancy, and was also an important figure in promoting cultural exchanges between China and the West in Ming Dynasty. He made great contributions to the cultural exchange between China and the West and the development of mathematics and astronomy in the Ming Dynasty. What are Xu Guangqi's concrete achievements and contributions in all aspects of life? Let's get to know each other.

During the Ming Dynasty, the calendar was backward. As an official of the Ministry of Rites, Xu Guangqi is duty-bound to correct the calendar. He compiled the Calendar of Chongzhen, which made great contributions to the calendar of Ming Dynasty. He introduced the concept of round soil and the knowledge of latitude and longitude to the Ming people for the first time. Besides astronomy, he also made some contributions to mathematics. He put forward ten applications of mathematics in daily life, including astronomy, water conservancy, music, art of war, military affairs, engineering, accounting and architectural survey, and was responsible for the translation of the mathematical masterpiece Geometry.

In addition, he also made great contributions to agriculture. At first, he lived at sea because of persecution by Wei Zhongxian. During this period, he studied a lot of agricultural materials and started agricultural research. Later, after the fall of Wei Zhongxian, he brought his sweet potato research results back to China for the benefit of the people. His contribution to agronomy also included compiling the Book of Agricultural Administration. Xu Guangqi has also made great contributions to the military. He put forward important military thoughts and made certain contributions to defending the country and training troops in the Ming Dynasty. At the same time, Xu Guangqi is also a famous calligrapher, and many of his calligraphy works have been handed down to this day.