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CALENDAR FOR ONE HUNDRED YEARS,
BY WHICH ANYONE CAN INSTANTANEOUSLY ASCERTAIN THE DAY OF THE WEEK UPON WHICH ANY GIVEN DATE OCCURS.
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EXPLANATION OF THE CHART OF SUNDAYS.
In the Calendar Chart are 7 Squares, in which the re months are arranged, under the dates of the days of the month on which the first Sundays occur in the following years, viz:
1800-6-17-23-28-34-45-51-56-62-73-79-84 & 90
and are termed and referred to as Standard Years. Exceptions. The years 1828-56 and 84 (multiple of 28), being Leap, as well as Standard Years, the first Sunday in January falls on January 6, and the first Sunday in February falls on February 3, all the other months remaining unaltered.
RULES TO BE OBSERVED.
To ascertain the day of the week upon which any given date occurs in the present Century.
1st. Subtract from the given year the nearest Standard year; call the remainder (if any) days; add these (together with as many days as there are Leap years between the given and the Standard years) to the number of the day required. Refer this number mentally to the Chart of Sundays, and from this ascertain the day of the week.
