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
Y Dydd Olaf (album) the second best album of 2015. Source: <br> All tracks written by Gwenno. Y Dydd Olaf (album) Y Dydd Olaf is the first solo album by Welsh singer-songwriter Gwenno. It was her third solo release after two previous EPs. The album was initially released on a small scale by the independent Peski Records label in October 2014 and sold out completely. It was re-released worldwide in 2015 by Heavenly Recordings. The album was an attempt by Gwenno to combine her political views with sounds she loves and was inspired in part by a dystopian science fiction book of the same