Who Decides When Easter is?

Unlike Santa, the Easter Bunny has never been big on schedules. On the years were he is prepared early, we get Easter in March. The years he extends his vacation Easter falls in April. Actually, there is a historical reason that Easter Sunday falls on a Sunday between March 22 and April 25 each year. The date is based on a lunar system and occurs the first Sunday after the Vernal Equinox.