Determination of the day of the week determined for the latter part of the analysis. By using a given day August 13, 2009 which was a Thursday as a reference, with "Base" and "n" being the number of days and weeks it has been since 01/01/0001 to the given day, respectively and "k" the day into the given week which must be less than 7, "Base" is expressed as Knowing that a year divisible by 4 or 400 is a leap year while a year divisible by 100 and not 400 is not a leap year, a software program can be written to find the number of
Y Dydd Chronicle (1954). Y Dydd Y Dydd (established by Samuel Roberts in 1868) was a weekly liberal Welsh language newspaper that was distributed in North Wales. 'Y Dydd' contained general political and religious news and opinions. The paper briefly merged with 'Tyst Cymreig' to form 'Tyst a'r Dydd'; however, it reverted to 'Y Dydd' a year later. In 1954, 'Y Dydd' merged with 'Corwen Chronicle and Border Advertiser'. In 1992, 'Y Dydd' again became a separate publication. 'Y Dydd' was published by William Hughes. Associated titles: Tyst Cymreig (1870); Tyst a'r Dydd (1871); Corwen Chronicle and Border Advertiser (1954); Y Dydd