Eugen Mittwoch Mittwoch was the leading orientalist in Germany, and the founder of a more politically oriented, modern science of Middle East Studies, in contrast to the traditional philologic, apolitical approach very much influenced by Goethe. In 1924, Mittwoch stayed in Jerusalem, where he participated in the founding of a Department for Semitic Studies at Hebrew University. Since he was the leading specialist on Ethiopian languages world-wide, Mittwoch did not lose his academic position in 1933 immediately like almost all his Jewish colleagues in Germany did at that time. This had to do with a special intervention by Mussolini with Hitler on
Determination of the day of the week his collected works in 1927. Gauss' method was applicable to the Gregorian calendar. He numbered the weekdays from 0 to 6 starting with Sunday. He defined the following operation: The weekday of 1 January in year number is where is the remainder after division of by , or modulo . This formula was also converted into graphical and tabular methods for calculating any day of the week by Kraitchik and Schwerdtfeger. Another variation of the above algorithm likewise works with no lookup tables. A slight disadvantage is the unusual month and year counting convention. The formula is where For example,