Christmas originated from Saturnalia, the ancient Roman festival to welcome the New Year, and has nothing to do with Christianity. After Christianity prevailed in the Roman Empire, the Holy See drifted into the Christian system to celebrate the birth of Jesus.
But Christmas is not the birthday of Jesus, because the Bible does not record the specific date when Jesus was born, nor does it mention the existence of such a festival, which is the result of Christianity absorbing ancient Roman mythology.
Most Catholic churches will hold midnight mass on Christmas Eve on1February 24, that is, in the early morning of1February 25, while some Christian churches will hold good news and then celebrate Christmas on1February 25; Another branch of Christianity, the Orthodox Church, celebrates Christmas on 1 7th every year.
Christmas is also a public holiday in the western world and many other regions, such as China, Hong Kong and Macau in Asia, Malaysia and Singapore.