Christmas

Christmas or Christmas Day is an annual festival commemorating the birth of Jesus Christ, observed generally on December 25 as a religious and cultural celebration among billions of people around the world.A feast central to the Christian liturgical year, it closes the Advent season and initiates the twelve days of Christmastide, which ends after the twelfth night.Christmas is a public holiday in many of the world nations, is celebrated culturally by a large number of former or non Christian people, and is an integral part of the Christmas and holiday season.While the birth year of Jesus is estimated among modern historians to have been between 7 and 2 BC, the exact month and day of his birth are unknown.His birth is mentioned in two of the four canonical gospels.By the early to mid 4th century, the Western Christian Church had placed Christmas on December 25, a date later adopted in the East, although some churches celebrate on the December 25 of the older Julian calendar, which currently corresponds to January 7 in the modern day Gregorian calendar.The date of Christmas may have initially been chosen to correspond with the day exactly nine months after early Christians believed Jesus to have been conceived, or with one or more ancient polytheistic festivals that occurred near southern solstice (i.e., the Roman winter solstice) a further solar connection has been suggested because of a biblical verse identifying Jesus as the Sun of righteousness.