Easter

The name Easter was originally derived from the word Eostre. Eostre was the ancient Greek goddess of spring. It was believed that every year, Eostre returned to Earth after a long, cold winter and brought along with her the light and warmth of Spring. Thus, ancient Greeks held pagan festivals to welcome Eostre and herald the onset of spring.
The Pagan festivals always coincided with the vernal Equinox on the 21st of March every year. Though the Greek were not fully cognizant of why and when spring comes, they believed Eostre must be pleased to ensure that she returns year after year. The festivals were lavish feasts that celebrated the booming of new flowers, the chirping of birds, butterflies, and sunshine and in general the feeling of rejuvenation that is inherent of spring.
The Christian church however, changed the Pagan festival from a celebration of spring to a celebration of the resurrection of Jesus. In 325 A.D. the church also changed the date of the festival. The festival was no longer held on the spring equinox. Instead, as per the Church Council of Nicaea henceforth it was to be held on the very first Sunday following the full moon on or after the vernal equinox. Thus, today Easter is celebrated on different dates every year and can occur as early as March 22nd or as late as April 25th. When Christ was crucified, he then came back to earth and gave light and beauty to the world.


SOURCE:http://www.historyofeaster.info/