We know about Christmas from the Bible.

The Bible has been proven true throughout history with archeology, geography, literature and history itself. It has never been proven untrue.

And she will bring forth a Son, and you shall call His name Jesus, for He will save His people from their sins.”

“Behold, the virgin shall be with child, and bear a Son, and they shall call His name Immanuel,” which is translated, “God with us.”

Now when Herod was dead, behold, an angel of the Lord appeared in a dream to Joseph in Egypt,

Then Haggai, the Lord's messenger, spoke the Lord's message to the people, saying, "I am with you, says the Lord."

"Behold, I send My messenger,
And he will prepare the way before Me.
And the Lord, whom you seek,
Will suddenly come to His temple,
Even the Messenger of the covenant,
In whom you delight.
Behold, He is coming,"
Says the Lord of hosts.

24 When the messengers of John had departed, He began to speak to the multitudes concerning John: "What did you go out into the wilderness to see? A reed shaken by the wind?  25 But what did you go out to see? A man clothed in soft garments? Indeed those who are gorgeously appareed and live in luxury are in kings' courts.  26 But what did you go out to see? A prophet? Yes, I say to you, and more than a prophet.  27 This is he of whom it is written:'Behold, I send My messenger before Your face,
Who will prepare Your way before You.'

"To the angel of the church of Ephesus write, 'These things says He who holds the seven stars in His right hand, who walks in the midst of the seven golden lampstands: