Why isn Easter on the same date every year – like Christmas, for instance?
A. The short answer is that in the 4th century it was decided that Easter would fall after the first full moon following the vernal or spring equinox. (The equinox is a day in the year on which daytime and night-time are of equal length. This happens twice a year, once in spring and once in autumn.) A more detailed answer would be this: We know from the New Testament that Jesus’ death and resurrection happened around the time of the Jewish feast of Passover. According to Matthew, Mark and Luke’s Gospels, the last meal Jesus shared with his disciples was a Passover meal, while John’s Gospel says that Jesus died on the feast of Passover itself. In those days, the Jews celebrated Passover on the “14th day of the first month” in accordance with the Bible’s commands (see Lev. 23:5, Num. 28:16, Josh. 5:11). The months of the Jewish calendar each began at new moon, so the 14th day would be the day of the full moon. The first month, Nisan, was the month that began from the spring new moon. In
