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
Day of the founding of the German Empire Day of the founding of the German Empire The Day of the founding of the German Empire (German: "Reichsgründungstag") was an annual celebration on the anniversary of the proclamation of the German Empire on 18 January 1871 in the Palace of Versailles. The North German Confederation had already officially adopted the name "German Reich" in its Constitution by 1 January 1871, so constitutionally speaking, 18 January was not the day of the founding. Celebrations were held annually on 18 January. At centralised and local events, patriotic speeches were held and songs such as "Heil dir im Siegerkranz", the unofficial anthem