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
First Day of the Easter Rising First Day of the Easter Rising The first day of the Easter Rising, Monday, April 24, 1916, saw some 1,200 volunteer soldiers of the Irish Volunteers take over positions in the centre of Dublin, launching the week-long revolution known as the Easter Rising. The Volunteers' Dublin division was organized into four battalions. As a result of Eoin MacNeill's countermanding order all of them saw a far smaller turnout than originally planned. The 1st battalion under Commandant Ned Daly mustered at Blackhall Street, numbering about 250 men. They were to occupy the Four Courts and areas to the northwest to guard