Easter eggs are a widely popular symbol of new life among the Eastern Orthodox but also in folk traditions in Slavic countries and elsewhere.
Easter is linked to Passover and the Exodus from Egypt recorded in the Old Testament through the Last Supper, sufferings, and crucifixion of Jesus that preceded the resurrection.
Easter is a Christian festival and cultural holiday commemorating the resurrection of Jesus from the dead.
Easter and the holidays that are related to it are moveable feasts, in that they do not fall on a fixed date in the Gregorian or Julian calendars (both of which follow the cycle of the sun and the seasons)