659 years ago today, on September 15, 1366 (August 11, 1366 lunar calendar), Zhu Yuanzhang ordered Liu Ji and others to build Kangcheng. Liu Ji (July 1, 1311 - April 16, 1375), character Bowen, posthumous name Wencheng, Han nationality, Zhejiang Qingtian native. A strategist, statesman and poet in the late Yuan and early Ming Dynasties, he was well-known all over the world, and was compared to the Marquis of Zhuge by later generations by assisting Zhu Yuanzhang in completing the imperial business, founding the Ming Dynasty and trying his best to maintain the stability of the country. Zhu Yuanzhang called Liu Ji many times: "My son's room is also." In the 26th year (1306), when Liu Ji was 50 years old, he was hired by Zhu Yuanzhang to go to Jinling with Song Sheng, Zhang Yi and Ye Chen. Liu Ji presented to Zhu Yuanzhang the eighteen strategies of current affairs, and was treated by Zhu Yuanzhang. Zhu Yuanzhang specially built the Lixian Hall for the "Fourth Mister". From then on, Liu Ji participated in the military aircraft and became the main strategist of Zhu Yuanzhang's founding of the Ming Dynasty. First, he formulated a "grand plan of conquest" for Zhu Yuanzhang. He also proposed the strategy of destroying Chen Youming first, and then taking Zhang Shicheng, which was adopted by Zhu Yuanzhang. Zhu Yuanzhang destroyed Chen and Zhang followed by "the Northern Expedition to the Central Plains, and then became an imperial business, just like Ji Zi." In the 26th year of the Zhengzheng Dynasty (September 15, 1366), Liu Ji was ordered to build Kangcheng (now Nanjing) in the name of Taishiling. Comment: Jiankang is today's Nanjing