What is Christmas and what are the holiday forms

An important Christian holiday commemorating the birth of Jesus. Also known as Jesus Christmas or Nativity, also known as Jesus Christmas Feast in Catholicism. The date of Jesus' birth is not recorded in the Bible. The Roman Church began celebrating this festival on December 25th in 336 AD. December 25th was originally the birthday of the sun god designated by the Roman Empire. Some people believe that choosing this day to celebrate Christmas is because Christians believe that Jesus is the sun of justice and eternity. After the mid-5th century, Christmas became an important holiday and a tradition in the church, gradually spreading in both Eastern and Western churches. Due to different calendars and other reasons, the specific dates and forms of celebrations held by different denominations also vary. The spread of Christmas customs to Asia was mainly in the mid-19th century, and Japan, South Korea, and others were influenced by Christmas culture. Nowadays, it has become a common custom in the West to exchange gifts, hold banquets, and add festive atmosphere with Santa Claus, Christmas trees, etc. during Christmas. Christmas has also become a public holiday in the Western world and many other regions.
Festival format
Christmas cards are very popular as Christmas gifts in the United States and Europe, and many families bring annual family photos or news with the cards. The news usually includes information about the strengths and weaknesses of family members in the past year. Sending Christmas cards on Christmas Day not only expresses the joy of celebrating Christmas, but also wishes to family and friends, expressing feelings of longing. Especially for relatives and friends in loneliness, it is a warm care and comfort.