"There were no Christmas cards in 1843 England, no Christmas trees at royal residences or White Houses, no Christmas turkeys, no department-store Santa or his million clones, no outpouring of "Yuletide greetings," no weeklong cessation of business affairs through the New Year, no orgy of gift-giving, no ubiquitous public display of nativity scenes (or court fights regarding them), no holiday lighting extravaganzas, and no plethora of midnight services celebrating the birth of a savior. In fact, despite all of Dickens's enthusiasms, the holiday was a relatively minor affair that ranked far below Easter, causing little more stir than Memorial Day or St. George's Day does today. In the eyes of the relatively enlightened Anglican Church, moreover, the entire enterprise of celebrating Christmas smacked vaguely of paganism, and were there Puritans still around, acknowledging the holiday might have landed one in the stocks.
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For the first several hundred years of Christianity's practice, and while the death and rebirth of Jesus were venerated upon the highest holy day of Easter, the birth of the savior was not celebrated. It was Pope Julius I who, during the fourth century, designated December 25 as the official date for the birth of Jesus, and scholars believe that he chose the date so that Christianity might attract new members by co-opting the lingering sentiments for the ancient festival of Saturnalia, held annually by Romans in honor of their god of agriculture. Beginning the week before the winter solstice (which occurs between December 20 and 23 each year) and for an entire month, Romans turned their ordinary world topsy-turvy and embarked upon an orgy of drinking and feasting, during which businesses and schools were closed, the government of the city was turned over to the peasants, and slaves were relieved of their masters".
An excerpt from "The Man Who Invented Christmas"(Dickens), from:
http://www.npr.org/templates/story/story.php?storyId=96909350