Christmas, the name is short for "Christ's mass". Mass is a kind of church service. Christmas is a religious festival. Because regard it as the birthday of Jesus to celebrate, name and Christmas. This day, the world all Christian churches are held a special service.
Every year December 25, is the christians celebrate the birth of Jesus Christ celebrate the day, on Christmas day, most of the Catholic church will first try in December 24, the Christmas Eve on December 25.
held at midnight mass, and some of the Christian church will hold good tidings, and then Christmas is celebrated on December 25, And Christian another big branch - orthodox Christmas celebration is in every year on January 7.
圣诞节，这个名称是“基督弥撒”的缩写。弥撒是教会的一种礼拜仪式。圣诞节是一个宗教节。因为把它当作耶稣的诞辰来庆祝，因而又名耶诞节。这一天，世界所有的基督教会都举行特别的礼拜仪式。
每年12月25日，是基督徒庆祝耶稣基督诞生的庆祝日，在圣诞节，大部分的天主教教堂都会先在12月24日的耶诞夜，亦即12月25日凌晨举行子夜弥撒，而一些基督教会则会举行报佳音，然后在12月25日庆祝圣诞节；而基督教的另一大分支——东正教的圣诞节庆祝则在每年的1月7日。
是美国最大、人们最喜爱的节日。
据基督教徒的圣书《圣经》说，上帝决定让他的独生子耶稣基
督投生人间，找个母亲，然后就在人间生活，以便人们能更好地了
解上帝、学习热爱上帝和更好地相互热爱。“圣诞节”的意思是“
庆祝基督”，庆祝一个年轻的犹太妇女玛丽娅生下耶稣的时刻。
玛丽娅已和木匠约瑟夫订婚。可是，在他们同居之前，约瑟夫
发现玛丽娅已怀孕。因为约瑟夫是个正派的人，又不想把这件事说
出去让她丢脸，所以他想悄悄地和她分手。他正在考虑这事时，上
帝的天使出现在他的梦中，对他说，“不要嘀咕了，把玛丽娅娶回
家。她怀的孩子来自圣灵。她将生下个男孩子，你们给孩子起名叫
耶稣，因为他将从罪恶中拯救人们。”
尽管耶稣的确切生日并不清楚，大约是在2000年前，但是日历
按着假定日期把时间分为公元前（耶稣基督诞生前）和公元后（A.
D. 是拉丁文缩写，意思是“有了我们主--耶稣的年代”）。在公
元后的头三百年间，耶稣的生日是在不同的日子庆祝的。最后，在
公元354年，教堂的领导人把12月25日定为耶稣基督的生日。
The Origin of Christmas
Christmas Day-December 25-which celebrates the birth of Jesus Christ, the founder of the Christian religion, is the biggest and best-loved holiday in the United States.
According to the Bible, the holy book of Christians, God decided to allow his only son, Jesus Christ, to be born to a human mother and live on earth so that people could understand God better and learn to love God and each other more. "Christmas"- meaning "celebration of Christ "- honors the time when Jesus was born to a young Jewish woman Mary.
Mary was engaged to be married to Joseph, a carpenter, but before they came together, she was found to be with child. Because Joseph, her husband, was a righteous man and did not want to expose her to public disgrace, he had in mind to divorce her quietly. But after he had considered this, an angel of the Lord appeared to him in a dream and said, "Do not be afraid to take Mary home as your wife, because what is conceived in her is from the Holy Spirit. She will give birth to a son, and you are to give him the name Jesus, because he will save his people from their sins."
Although the exact date of the birth of Jesus nearly 2,000 years ago is not known, the calendar on the supposed date divides all time into B.C. (Before Christ )and A.D. ( a Latin phrase, Anno Domini, "in the year of our Lord.")For the first 300 years, Jesus' birthday was celebrated on different dates. Finally, in the year 354, church leaders chose December 25 as his birthday.
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