Merry ChristmasChristmas is a Western holiday, and it is also a New Year in some countries. Later, it entered China. Christmas is an important holiday for Christianity to commemorate the birth of Jesus. The Roman church began to celebrate this festival on December 25 in 336 AD. December 25 was originally the birthday of the sun god prescribed by the Roman Empire. Some people think that they choose to celebrate Christmas on this day because Christians believe that Jesus is the righteous and eternal sun. After the mid-fifth century, Christmas as an important holiday became a church tradition and gradually spread among Eastern and Western churches. Due to the different calendars used and other reasons, the specific dates and customs of antiquities celebrations of various denominations spread to Asia mainly in the mid-nineteenth century. Japan, South Korea, etc. were all influenced by Christmas culture. Christmas has also become a public holiday in the Western world and many other regions.