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medieval-religion: Scholarly discussions of medieval religion and culture

Daniel,

I'm not sure this is quite what you have in mind, but there's a wonderful resource I heartily commend for your venture, viz., The Oxford Companion to the Year (Oxford 2003), by Bonnie Blackburn and Leofranc Holdford-Strevens.  In it, you'll find a wealth of information about computing the date of Easter. In particular, Appendix H contains a table listing the very criteria you mention.  I hope this is of some help to you.

--Christopher

>-----Original Message-----
>From: Daniel K. Gullo [mailto:[log in to unmask]]
>Sent: Sunday, February 25, 2007 09:10 PM
>To: [log in to unmask]
>Subject: [M-R] Easter Calculation Table
>
>medieval-religion: Scholarly discussions of medieval religion and culture
>
>Hello everyone,
>
>I have been asked by a friend to help describe a short
>manuscript that contains several interesting diagrams on
>calculating easter.  I am completely unfamiliar with this form
>of computation.  I have tried looking up several books on
>this, but I have had a hard time finding a basic text that
>explains the parts of each table except for a book of hours.
>
>The current manuscript, in a private collection, has both
>table and circular computations.  My hope is that if I can
>figure out the tables, then I might be able to figure out the
>circular diagrams.  Although be warned I might have to post
>those too.  The good news is, if I can figure all of them out
>I am going to ask if I can put them all online as a teaching aid.
>
>I have uploaded one of the images from the primary tables (see
>below).  These are for the months January and February.  There
>are six columns.
>
>1) number of days in the month
>2) golden numbers
>3) ????
>4) dominical letters
>5) ????
>6) "sign or symbol letters"
>
>I know how the 1st, 2nd, and 4th columns work.  However, the
>3rd, 5th, and 6th column are completely incomprehensible.
>
>Column six seems to provide letters for the days of the month
>in column one.  I am not sure.  If so, what is the rationale?
>
>Column five is incredibly puzzling as it seems to be spelling
>out a sentence, with a couple of letters in each square of the
> table.  
>
>I have no idea what three is, but it seems to be the hours of
>the day.  But did they the compute the hours of the day in 24
>hours, or in 12?
>
>Here is the file (sorry for the sidways view).  For those with
>dialup (like me) be warned as it is very large.  
>
>http://home.uchicago.edu/~dkgullo/EasterCalcTable.jpg
>
>Thank you for all your help
>
>Daniel
>----------------------------
>Daniel K. Gullo
>Ph.D. Candidate
>Department of History
>1317 E. Madison Park
>Apt. 1
>Chicago, IL 60615
>http://home.uchicago.edu/~dkgullo
>773-536-3401 (home)
>773-592-6172 (cell)
>
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