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NOTE
Found through On Hands research with Bede’s hand method. I did not realize this concept of a “moveable feast” and the computation required to access the time of Easter.
People of this time had too much time on their hands.
That’s a joke as well.
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 algorithm 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.
To find the date of Easter — which falls after the Northern Hemisphere’s spring equinox, on the Sunday immediately following the first full moon — one needs to reckon with planetary rhythms, which Bede mapped across his hands. The five fingers, he observed, contain fourteen joints, plus five nails — nineteen landmarks in all. 1
Chronological diagram of the date of Easter for 600 years.
