The word Christmas comes from the words Cristes maesse, or "Christ's Mass". Christmas is the celebration of the birth of Jesus for members of the Christian religion. Most historians peg the first celebration of Christmas to Rome in 336 AD. Christmas is both a holiday and a Holy Day. In America it is the biggest event of the year (especially for kids), and for members of the Christian religions it is an important day on the religious calendar. The federal government, all state governments, all schools/colleges/universities and the vast majority of businesses in America give employees one or two days off at Christmas, making it an important holiday (other federal holidays are: New Year's Day, Martin Luther King Day, Washington's Birthday, Memorial Day, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving). In the Roman Catholic calendar, Christmas is one of 6 holy feast days celebrated in America, the others being: Circumcision (New Year's Day), Ascension, Assumption
聖誕節一詞來源於話Cristes maesse，或“基督彌撒”。聖誕節是爲基督教的宗教信徒，慶祝耶穌的誕生。大部分歷史學家掛聖誕慶祝羅馬首次在公元336。既是聖誕節假期和聖日。在美國這是今年最大的事件(特別是兒童)，
和基督教宗教的成員，是一個宗教日曆上重要的一天。聯邦政府，州政府所有，所有學校/學院/大學和企業在美國的.絕大多數給員工一個或兩個聖誕節休假，使之成爲一項重要的節日(其他聯邦假日：元旦，馬丁路德金白天，
華盛頓誕辰紀念日，陣亡將士紀念日，獨立日，勞動節，哥倫布日，退伍軍人節，感恩節)。在羅馬天主教日曆，聖誕節是6神聖的節日之一，美國的慶祝，另外三個是：割禮(元旦)，阿森鬆，聖母昇天