Zhishanmen Street，Located in Xicheng District, Beijing，So named because the street is outside Zhishan Gate in Beihai，called Zhishanmen Street or Zhishanmen in the Qing Dynasty，In 1965, Beihai Zhongjia Road was merged into Jie Zhong，Determined as the present name。Go west from the south entrance of Xuechi Hutong，Near the east gate of Beihai，A large courtyard with a Western-style gatehouse。This used to be the staff dormitory of the National Peking Library，Historian Gu Jiegang、bet365 coupon code and other scholars have lived here。

bet365 coupon code (1911-1992)，People from Jiashan, Zhejiang，Historian、The main founder and pioneer of Chinese historical geography，Main works include "Changshui Collection", "Changshui Collection Sequel", etc.。1927，After bet365 coupon code transferred to the Department of History and Sociology of Jinan University，Appreciated by Pan Guangdan。1930，He wrote a paper of more than 60,000 words "History of Chinese Immigration"，Entered the Graduate School of Yenching University in the same year，Study under Gu Jiegang。1934，He assisted Gu Jiegang in founding the bimonthly "Yugong"，Preparing to establish the Yugong Society。1955，He went to Beijing to preside over the compilation of the "Historical Atlas of China"。

　After the 1950s，bet365 coupon code to the Yellow River、Haihe、A systematic study was conducted on the changes in the water system in the middle reaches of the Yangtze River。He also discovered an unknown ancient Yellow River route，This proves that the diversion of the lower reaches of the Yellow River was very frequent before the Western Han Dynasty。His contribution to the formation of the Haihe River system、The process of Shanghai becoming land、The changes of Dongting Lake、A special study was conducted on the formation of Poyang Lake。These results are not only important for physical geography、Historical geography research is of great significance，But also on China’s disaster prevention and control、Water conservancy development and modernization construction have practical guiding significance。