page 12

Faults in the Gregorian calendar

If, for example, one wants to know when one’s birthday is, one must check the calendar.

However, people could not accomplish one calendar each year over a long period of time. That is why one needed an aid to calculating the dates for another year from an already existing calendar. The Wuerzburg calendar medallion of 1780 was a mnemonic for calculating Sundays, Easter and other holidays with the aid of the Golden Number, Epacts etc.

But still today we have to count out the differing lengths of months on our fingers.

Medaille r

page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21