นศุกร์ดี

หรือโปรเตสแตนต์นิกายโรมันคาทอลิก : The First Council of Nicaea (a gathering of bishops in the early days of Christianity) wanted to find a day to commemorate the crucifixion and resurrection of Christ. This commemoration had to be linked to Jewish holiday traditions, since the last supper of Christ was believed to be a Jewish Passover meal. But the Jewish calendar is based on lunar and solar cycles, so the Easter celebration had to follow the same calendar.