Science is Fact wrote:
"So, when they say stuff like, 'Christmas, the day jesus was born!' I am disgusted that these pastors basically represent the christian community, and these are the type of people that give religion a bad name."
You might be misunderstanding what you're hearing. I doubt that many pastors would make a comment like the one you're describing with the intended meaning you're drawing from it. They're probably saying that Christmas
celebrates the day Jesus was born. People often speak as if one thing
is something else when they mean that one thing
represents something else.
The earliest extant reference we have to December 25 associated with Jesus' birth seems to be in the third century. The date was adopted in different parts of the world at different times and for different reasons. If you're interested in reading more about the origins of using that date in relation to Jesus' birth, see
here. The following are some of Joseph Kelly's comments on the subject:
"In 274 Aurelian [a Roman emperor] instituted the cult of Sol Invictus, the Unconquered Sun....Aurelian made December 25, the winter solstice, the birthday of Sol Invictus and thus a major feast day throughout the Roman Empire....In 336 the local church at Rome proclaimed December 25 as the dies natalis Christi, 'the natal day of Christ,' that is, his birthday. The document which says this does not justify or explain it. It merely says that this is the day, that is, the date had been accepted by the Roman church some time before and since everyone knew about it, discussion of the date was not necessary. But how long before 336 was the date for Christmas accepted? Historians have wondered whether the Christians in the late third century had waged a propaganda war against Aurelian, promoting their Sun of Righteousness [Jesus in the context of Malachi 4:2], the Sol Iustitiae against his Unconquered Sun, the Sol Invictus....We should also recall that Sextus Julius Africanus [a Christian who wrote during the first half of the third century] had already proposed December 25 as the date of Christ's birth. Aurelian's opponents may have plausibly reasoned that if the date already existed [in Christian circles], why not use it against the imperial cult of the Sun?...The second piece of evidence for a third-century propaganda struggle is a work of art, a mosaic on the ceiling of a tomb of the family Julii and now preserved in the necropolis (Greek for 'city of the dead') under St. Peter's basilica in Rome. It portrays Christ driving a chariot through the heavens, just as the pagan sun god Helios did, and Jesus, like the god, has rays of light emanating from his head....They date the mosaic to the late third century, that is, at the time when the emperor Aurelian was promoting the cult of the Unconquered Sun. Significantly, this is the only ancient portrayal of Christ as the sun. Historians find it impossible to believe that this portrayal was just coincidentally produced in the city of Rome at the very time when the pagans were promoting the cult of their sun." (The Origins Of Christmas [Collegeville, Minnesota: Liturgical Press, 2004], pp. 65-68)
William Tighe
writes:
"Rather, the pagan festival of the 'Birth of the Unconquered Son' instituted by the Roman Emperor Aurelian on 25 December 274, was almost certainly an attempt to create a pagan alternative to a date that was already of some significance to Roman Christians. Thus the 'pagan origins of Christmas' is a myth without historical substance....Thus, December 25th as the date of the Christs birth appears to owe nothing whatsoever to pagan influences upon the practice of the Church during or after Constantines time. It is wholly unlikely to have been the actual date of Christs birth, but it arose entirely from the efforts of early Latin Christians to determine the historical date of Christs death. And the pagan feast which the Emperor Aurelian instituted on that date in the year 274 was not only an effort to use the winter solstice to make a political statement, but also almost certainly an attempt to give a pagan significance to a date already of importance to Roman Christians. The Christians, in turn, could at a later date re-appropriate the pagan 'Birth of the Unconquered Sun' to refer, on the occasion of the birth of Christ, to the rising of the 'Sun of Salvation' or the 'Sun of Justice.'"
Regarding the evidence for events surrounding Jesus' birth in general, see
here.