Eugen Mittwoch behalf of Mittwoch. Because of their colonial activities in Ethiopia, the Italians were extremely interested in Mittwoch's knowledge and research. Mittwoch was very active on behalf of the Ethiopian Jews (Falasha), and was also one of the first German Jews who could speak fluent Ivrit. Starting in 1933, Mittwoch used his "privileged" position in Germany (he continued to receive his salary as a German professor until the beginning of the war) on behalf of the Jewish community, he became head of the American Jewish Joint Distribution Committee in Berlin. However, in 1938, after Kristallnacht, also Mittwoch had to emigrate, and
Determination of the day of the week that a year can start on, and leap years will alter the day of the week after February 29. This means that there are 14 configurations that a year can have. All the configurations can be referenced by a dominical letter, but as February 29 has no letter allocated to it a leap year has two dominical letters, one for January and February and the other (one step back in the alphabetical sequence) for March to December. For example, 2018 is a common year starting on Monday, meaning that 2018 corresponds to the 2007 calendar year and with the last