Am gasit ceva interesant referitor la Pascalie:
It was difficult to determine the Glorious Resurrection Feast every year as the feast is linked to and should come after the Jewish Passover. However, the Jewish Passover is dependent upon the harvest season and the Jewish calendar is lunar not solar and for this reason the Jewish Passover is always between April and May. St. Demetrius invented a special calendar, comprised of both lunar and solar years, to adjust the time of the Glorious Resurrection Feast so the feast doesn’t come before the 1st week of April and not after the 1st week of May. St. Demetrius’ calendar is composed of 19 solarlunar years. The lunar calendar is less than solar calendar by 11 days and so in 19 years it will be 209 days. St. Demetrius divided those 209 days on his 19-years calendar by adding one month to every 2 or 3 years as follows:
[...]
After he finished his invention, St. Demetrius discussed his calendar with his holy Senate
members in Alexandria and they consented to use it for determination of the Glorious Resurrection Feast. One century later, the Fathers of the Council of Nicea decided to use St. Demetrius’ calendar to determine the Glorious Resurrection Feast within the realm of the entire Catholic Church and it remained in use until 1582 AD when the Roman Bishop Gregory the 13th decided to celebrate the Glorious Resurrection Feast the first Sunday following the completeness of the full moon after spring temperance (March 21st ) regardless of the Jewish Passover and so Catholics sometimes celebrate the Glorious Resurrection Feast at the end of March and thus the celebration may have coincided with the Jewish Passover.
http://www.suscopts.org/pdf/copticchurch/hx6.pdf
Sa inteleg ca deja la Primul Sobor de la Nicea Sfintii Parinti au adoptat acest tabel pascal, care noi il folosim si astazi pentru praznuirea Sfantului Paste? Ca asta reiese din ce scrie in acest document!