Christmas Day An important Christian holiday commemorating the birth of Jesus Christ.Also known as Jesus Christmas, the birth of the Lord, the Catholic Church also called Jesus Christmas celebration.The date of Jesus' birth is not recorded in the Bible.In 336 AD, the Roman Church began celebrating the feast on December 25.December 25 was originally the birthday of the Sun God stipulated by the Roman Empire.Some people believe that this day was chosen to celebrate Christmas because Christians believe that Jesus is the righteous and eternal sun.After the middle of the 5th century, Christmas, as an important festival, became a tradition of the church, and gradually spread in the Eastern and Western churches.Due to the different calendars used and other reasons, the specific dates and forms of celebration are also different among denominations.Christmas customs spread to Asia mainly in the middle of the 19th century, Japan, South Korea, etc. were affected by Christmas culture.Now in the West at Christmas often give each other gifts, hold a feast, and to Santa Claus, Christmas trees and other to add festive atmosphere, has become a common custom.Christmas has also become a public holiday in the Western world and many other parts of the world