High Quality Content by WIKIPEDIA articles! William Markowitz (February 8, 1907, Vitkov, Austrian Silesia - October 10, 1998, Pompano Beach, Florida) was an American astronomer, principally known for his work on the standardization of time.His mother was visiting Mel?, Vitkov in Austrian Silesia (now cs:Mel?, Czech Republic) when William was born. The Polish family emigrated to the U.S. in 1910 and settled in Chicago.William earned his doctorate from the university in 1931, under W.D. MacMillan. He taught at Pennsylvania State College before joining the United States Naval Observatory in 1936, working under Paul Sollenberger and Gerald Clemence in the time service department.

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