359 years ago today, on August 15, 1666 (July 15, 1666 in the lunar calendar), the Jesuit missionary Tang Ruowang passed away. Tang Ruowang, a Jesuit missionary. German. Born in Cologne on May 1, 1592 (1591). Born in a noble family, he has an active personality and studied in the well-known Sanwangmian Nobility Middle School. Due to his outstanding academic performance, he was sent to Germain College in Rome after graduation. In 1619, he was sent by the Jesuit Order and arrived in Macau under the leadership of French priest Kinniquet. The second year of Tianqi of the Ming Dynasty (1622) entered Guangdong. Arrived in Beijing on December 25 of the same year (January 25, 1623). He is proficient in astronomy and calendar calculations. In the first two years in Beijing, he won the appreciation of Zhang Wenda, Minister of Revenue, for his accurate calculation of lunar eclipses. Tang Ruowang has written a lot. He participated in the compilation and translation of "Kunyu Gezhi","Armillary Sphere Shuo","Xixiqi Calendar","Minlibu Notes Douhuo","Da Ce","Xingtu", five volumes of "Hengxing Table", seven volumes of "Jiaoshi Calendar", two volumes of "Jiaoshi Calendar Zhi", two volumes of "Ceshi Shuo", two volumes of "Cetian Yue Shuo", one volume of "Xinfa Calendar", one volume of "Xizhuan", two volumes of "Zhuzhi Qunzheng", one volume of "Xizhuan", two volumes of "Zhuzhi Qunzheng", one volume of" Ancient and Modern Jiaoshi Kao", one volume of" Academic Degree Xiao Bian","Stars Appear","Coincidence Table", etc., which involve astronomy and calendar, are basically included in or related to the "Chongzhen Calendar". On July 15, the fifth year of Kangxi (August 15, 1666), Tang Ruowang died of illness in his apartment. In the eighth year of Kangxi, Kangxi rehabilitated Tang Ruowang. On November 16, 1669, Kangxi issued another memorial to Tang Ruowang: "The emperor ordered to pay tribute to the former General Political Envoy of the General Political Envoy, and to add two levels to one level to take charge of the printing affairs of the Imperial Palace. Therefore, Tang Ruowang's spirit said: Devote yourself to your best will be the trace of your courtiers. Paying for death and repaying for hard work is a grand ceremony for the country. Ertang Ruowang came from the Western Regions and was familiar with astronomy. He was specially given the title of Yuanxi Tongwei Teacher by the Department of Elephant Calendar. I mourn your long passing away. Special compensation was given and officials were sent to pay sacrifices. Alas, I will live in immortal glory, and I will enjoy the reward of bandits. If you know something, you will enjoy it." Tang Ruowang's tombstone is erected in the courtyard of the Beijing Municipal Party Committee Party School of Santa Temple, Chegongzhuang, outside Fucheng Gate, Beijing. This place was formerly known as the Jiali Cemetery. Now, in Tang's hometown of Cologne, Germany, a full-length portrait of white marble has been erected for him, and the Tang Ruowang Association has also been established to study cultural exchanges between China and Germany. Comment: Cross-cultural communication is not easy to do. Tang Ruowang made important contributions to the exchanges between the East and the West.