We all know that Christmas is the birthday of Jesus Christ but Easter day is the day on which he took a rebirth. Easter week is meant to be celebrated as the resurrection of Christ.
Easter is usually celebrated on the first Sunday after the full moon, after the spring equinox. According to the Bible, Jesus Christ's death and resurrection occurred around the time of the Jewish Passover, which was celebrated on the first full moon following the spring equinox. This led to Christians celebrating Easter on different dates each year.
Eastern Christianity bases its calculations on the Julian Calendar. Because of the 13-day difference between the calendars. This year, in the Gregorian calendar, Easter will fall on Sunday, April 1, and, in the Julian calendar, it will fall on Sunday, April 8. Christians celebrate Easter on a Sunday as it was the day Jesus rose from the dead, after being crucified on a Friday two days before.
Easter eggs and the Easter Bunny re some of the rituals Christians follow. They are both fertility symbols, holdovers from the feast of Eostara. Other symbolic parallels include the pagan joy in the rising sun of spring.