Determination of the day of the week his adjustments for centuries are to be determined using formulas similar to those for the centuries table. Although explicit in asserting that his method also works for Old Style dates, his example reproduced below to determine that "1676, February 23" is a Wednesday only works on a Julian calendar which starts the year on January 1, instead of March 25 as on the "Old Style" Julian calendar. Algorithm: Take the given date in 4 portions, viz. the number of centuries, the number of years over, the month, the day of the month. Compute the following 4 items, adding each, when
German Unity Day in East Germany, even with the name "Day of the German Unity". Since 1963, it was proclaimed by the President of the Federal Republic as "National Day of Memorial of the German People". However by the mid-1960s as hope faded that the two Germanies would ever be re-united, this date became more of a holiday and opportunity to drink than a day to consider national unity. In the year 1990, the "Day of German Unity" was celebrated twice, on this date and on October 3. In East Germany, the Founding Day in 1949 would be celebrated on 7 October as