November 1, 1949 (Year of the OX September 11), the Chinese Academy of Sciences was established. Reference 1 November 1949, the establishment of the Chinese Academy of Sciences in Beijing, it is a comprehensive study of the leading institutions of the highest academic center. First President Guo, (Today in History. Com), vice president of Siguang Tao Meng and, Zhu, Chen Boda. The Academy of Sciences under the Planning Bureau, the Compilation and Translation Bureau, contact the Bureau and other units, and the Research Department of North China University survey of aquatic organisms, former Peking Institute of the institutes, the former Academia Sinica Institute, Institute of Geography units, adjusting the merger as geography, physics, chemistry, biology, philosophy, sociology 5 15 research units. Subsequently, mathematics, psychology, geography, such as establishment of the Institute. Each unit consists of a number of Institute, Room. It is mainly engaged in the study of the natural sciences, philosophy, social sciences, basic sciences, emerging technologies, the national economy and national defense construction major topics.