Easter is a Christian holiday that celebrates the belief in the resurrection of Jesus Christ.

BIBLE

In the New Testament of the Bible, the event is said to have occurred three days after Jesus was crucified by the Romans and died in roughly 30 A.D.

PASSION OF CHRIST

The holiday concludes the “Passion of Christ,” a series of events and holidays that begins with Lent—a 40-day period of fasting, prayer and sacrifice—and ends with Holy Week, which includes Holy Thursday (the celebration of Jesus’ Last Supper with his 12 Apostles, also known as “Maundy Thursday”),

GOOD FRIDAY

Good Friday (on which Jesus’ crucifixion is observed) and Easter Sunday. Although a holiday of high religious significance in the Christian faith, many traditions associated with Easter date back to pre-Christian, pagan times.
 

Religious Tradition of Easter

The resurrection of Jesus, as described in the New Testament of the Bible, is essentially the foundation upon which the Christian religions are built. Hence, Easter is a very significant date on the Christian calendar.

According to the New Testament, Jesus was arrested by the Roman authorities, essentially because he claimed to be the “Son of God,” although historians question this motive, with some saying that the Romans may have viewed him as a threat to the empire.
 

He was sentenced to death by Pontius Pilate, the Roman prefect in the province of Judea from 26 to 36 A.D. Jesus’ death by crucifixion, marked by the Christian holiday Good Friday (the Friday before Easter), and subsequent resurrection three days later is said, by the authors of the gospels, to prove that he was the living son of God.

In varying ways, all four of the gospels in the New Testament (Matthew, Mark, Luke, and John) state that those who believe in Jesus’ death and resurrection are given “the gift of eternal life,” meaning that those of faith will be welcomed into the “Kingdom of Heaven” upon their earthly death.

Easter Traditions
 

This period of fasting and penitence is called Lent. It begins on Ash Wednesday, and lasts for 40 days (not including Sundays).

The Sunday immediately prior to Easter is called Palm Sunday, and it commemorates Jesus’ arrival in Jerusalem, when followers laid palm leaves across the road to greet him.

Many churches begin the Easter observance in the late hours of the day before (Holy Saturday) in a religious service called the Easter Vigil.

In Eastern Orthodox Christianity, Easter rituals start with the Great Lent, which begins on Clean Monday (40 days prior to Easter, not including Sundays). The last week of Great Lent is referred to as Palm Week, and it ends with Lazarus Saturday, the day before Palm Sunday.

Palm Sunday marks the beginning of Holy Week, which ends on Easter.

Easter Eggs
 

It’s believed that eggs represented fertility and birth in certain pagan traditions that pre-date Christianity. Egg decorating may have become part of the Easter celebration in a nod to the religious significance of Easter, i.e., Jesus’ resurrection or re-birth.

Many people—mostly children—also participate in Easter egg “hunts,” in which decorated eggs are hidden. Perhaps the most famous Easter tradition for children is the annual White House Easter Egg Roll, when children roll Easter eggs down Capitol Hill.
 

Easter Bunny

In some households, a character known as the Easter Bunny delivers candy and chocolate eggs to children on Easter Sunday morning. These candies often arrive in an Easter basket.

The exact origins of the Easter Bunny tradition are unknown, although some historians believe it arrived in America with German immigrants in the 1700s. Rabbits are, in many cultures, known as enthusiastic procreators, so the arrival of baby bunnies in springtime meadows became associated with birth and renewal.

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Original text - History.com