Determination of the day of the week row C) to find the dominical letter that is E. The letter for September 18 is B, so the day of the week is Thursday. Use 16 (in the Julian century row, column E) and 76 (in row D) to find the dominical letter that is A. February 23 is a "D" day, so the day of the week is Wednesday. In a handwritten note in a collection of astronomical tables, Carl Friedrich Gauss described a method for calculating the day of the week for 1 January in any given year. He never published it. It was finally included in
German Unity Day the first Prussian coronation of the king, which should not fall into the shadow of a united German holiday." On 31 July 1919, the Weimar Constitution would be accepted in its form by the Weimar National Congress. In memorial of this "Hour of birth of democracy", the 11 August was created as Constitution Day, because the President of the Empire, Friedrich Ebert, signed the constitution on this day. Shortly after the Nazis took power in 1933 (the so-called "Machtergreifung"), May Day (1 May) was established as a national holiday in the "German Reich". It was already celebrated as a "Day