Counting the days

“The great gift of Easter is hope…”

Basil Hume

This beautiful object is a Paschal Calandar of the 6th Century. This engraved marble resides in the Archiepiscopal Museum in Ravenna, Italy. It is not a work of art, but rather a practical tool used to determine the date of Easter between 532AD- 625AD. This was no small feat. The Roman Catholic Church has used the following approach since around 222AD. As a movable feast. the date of Easter is determined in each year through a calculation known as computus (Latin for ‘computation’). Easter is celebrated on the first Sunday after the Paschal full moon, which is the first full moon on or after 21 March (a fixed approximation of the March equinox). Determining this date in advance requires a correlation between the lunar months and the solar year, while also accounting for the month, date, and weekday of the Julian or Gregorian calendar. The complexity of the algorthm arises because of the desire to associate the date of Easter with the date of the Jewish feast of Passover which, Christians believe, is when Jesus was crucified. So now you know how to do it yourself.. Probably easier to use a calendar on your phone. #happyeaster #letsmakelemonade

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