RonO (rono_60103) wrote,

Some Easter Trivia

Each year as Easter (or Ash Wednesday) approaches, and especially years when the date is very early or late, I start thinking about how Easter and the calendar interact. Years ago, I wrote a program that calculates the date for Easter and then does a bunch of trivial analysis on it.

So here are my results for this year:

Easter 2008 will occur on March 23.

The last time Easter fell on March 23 was 1913. The next time will be 2160.

2008 is a leap year. The last time Easter fell on March 23 in a leap year was 1856. The next time easter falls on March 23, in 2160, it will also be a leap year.

During the period from 1584 to 4584, March 23 has a higher fraction of occurrences as Easter in a leap year (11 out of 31) than every other date, except April 22. The lowest occurrence of Easter in a leap year is March 24 (2 out of 55)

Behind the cut is a graph showing the number of occurrences of Easter on each given date -- both for all years and leap years.


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