Determination of the day of the week day of the week begins by starting from an ‘anchor date’: a known pair (such as January 1, 1800 as a Wednesday), determining the number of days between the known day and the day that you are trying to determine, and using arithmetic modulo 7 to find a new numerical day of the week. One standard approach is to look up (or calculate, using a known rule) the value of the first day of the week of a given century, look up (or calculate, using a method of congruence) an adjustment for the month, calculate the number of leap years
Day of the German-speaking Community which the two parts of the community belonged before Belgian independence. A decree adopted on 1 October 1990 and published on 15 November 1990 prescribed the arms, the flag, the colours and the Community day, which was to be celebrated on 15 November. Here is an English translation of the original version of the decree: Article 1. The Day of the German-speaking Community shall be celebrated every year on 15 November. Article 2. The German-speaking Community shall bear the following arms: Article 3. The flag of the German-speaking Community shall be hoisted on 15 November on the official buildings of