Easter (Easter), is a festival to commemorate the resurrection of Jesus Christ, in the Western church tradition, the first Sunday after the full moon following the vernal equinox is Easter. The Eastern church stipulates that if the full moon coincides with a Sunday, Easter is postponed by one week. Therefore, the festival is roughly between March 22 and April 25. The the Holy Bible New Testament records that Jesus was crucified and resurrected on the third day, hence the name Easter. Easter is the most significant festival in Christ religion, more important than Christmas, with its origins and festival dates in Israeli. According to the Gospel of Matthew, Jesus Christ was crucified and resurrected three days after his death, thus establishing this festival. Historians, Based on the dates of the Bible and ancient Israeli Passover, have calculated that the first Sunday after the full moon following the vernal equinox (March 21) is the day of Jesus' resurrection mentioned in the Holy Bible. Since the vernal equinox is not fixed every year, the specific date of Easter each year is also uncertain. However, the festival is roughly between March 22 and April 25.