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
Dydd Santes Dwynwen greatly, to the extent of suggesting he had over fifty children). She met and fell madly in love with a man called Maelon, and he reciprocated her feelings. She asked her father if she could marry Maelon but Brychan disliked Maelon and refused to give his permission. Maelon begged, as did Dwynwen, but Brychan would not relent and Maelon was forced to leave. Dwynwen was so upset that she ran into the forest. There, she met an angel in a dream who granted her the position of the Saint of Love. Dydd Santes Dwynwen Much of Welsh history is based