PotsdamyoudaoicibaDictYouDict[Potsdam 词源字典]
town in Germany, first recorded 993 as Poztupimi; the name is Slavic, the first element is po "by near," the second element evidently was influenced by Dutch names in -dam. The Potsdam Conference of the victorious Allies in World War II was held July 17-Aug. 2, 1945, to decide the fate of Germany.[Potsdam etymology, Potsdam origin, 英语词源]