A Very Merry unBirthday to Albrecht Dürer

Albrecht Dürer's actual birthday is May 21, 1471, but, as we all recall from Lewis Carroll's Alice, we have 364 unbirthdays:




Ian Stewart's describes the history of magic squares in his January 1997 "Scientific American" article "Mathematical Recreations: Alphamagic Squares", citing  Dürer's engraving of Melencolia I

And zooming in on the upper right hand corner to show the magic square:

Since the original SciAm article is now behind a firewall, Science Frontiers ONLINE  No. 110: Mar-Apr 1997 goes into detail about logic of the "logorithm" of alphamagic squares.


A German alphamagic square from p 108 of SciAm article in homage to Albrecht Dürer:

	fünfundvierzig	zweiundsechzig	achtundfünfzig
	(45,14)	(62,14)	(58,14)
	achtundsechzig	fünfundfünfzig	zweiundvierzig
	(68,14)	(55,14)	(42,14)
	zweiundfünfzig	achtundvierzig	fünfundsechzig
	(52,14)	(48,14)	(65,14)