The First Chanukkah (December 164 BCE)
["And on the twenty-fifth day of the month Kislev, which the Macedonians call Apellaios, they lighted the lights [phôta] that were on the menorah, and offered incense upon the altar, and laid the loaves upon the table, and offered whole burnt offerings upon the new altar.
As it happened, these things took place on the very same day on which, three years before, the divine worship had been reduced to an impure and profane form of worship; for the Temple had remained desolate for three years after being made so by Antiochus...And the desolation of the Temple came about in accordance with the prophecy of Daniel, which had been made four hundred and eight years before; for he had revealed that the Macedonians would destroy it.
And so Judah and his fellow citizens celebrated the festival of the restoration of the sacrifices of the Temple for eight days, and omitted no sort of pleasure, but everyone feasted upon very rich and splendid sacrifices; and they honoured God, and delighted themselves with psalms of praise and the playing of harps. Indeed, they were so very glad at the revival of their customs and, after so long a time, having unexpectedly regained their right to worship, that they made it a law for their posterity that they should keep a festival celebrating the restoration of their Temple worship for eight days. And from that time to this we celebrate this, which we call the Festival of Lights [phôta], because, I imagine, beyond our hopes this right was brought to light [phanênai], and so this name was placed on the festival."] -continue reading here.
For over 2,000 years Chanukah has been observed on the 25th of the Jewish month Kislev, which corresponds to December.
It would seem to be more than a coincidence that "Christmas" is observed on the 25th of December.
During more than three hundred years after the Messiah was born there was no "Christmas" that was observed by the early Jewish and Gentile believers.
Dec.25th decreed as the birth of the Messiah by Constantine in AD 325.
The first recorded celebration of Dec. 25th as 'Christmas':
["The first recorded celebration of Christmas was marked in a list of Roman bishops that was compiled in 354 AD. For the date 336 AD, it was written: 25 Dec.: natus Christus in Betleem Judeae, which translates to December 25th Christ Born in Bethlehem, Judea."
"Nobody is sure which day Jesus was actually born. It is proposed that the date December 25th was chosen as the day to celebrate Jesus¹ birth because the date was already used by many cultures and pagan religions as a holiday to hold feasts and celebrate the winter solstice."]
The following from Messiah Assembly:
"Biblical Dates for Yeshua Ha Mashiach's conception and birth"-
A key excerpt:
["Chanukah often falls very close to Christmas, and at times is on the very same day. The apostate Roman church, under the direction of Constantine, dictated that Christians were to stop celebrating Chanukah. Records of that time, both Jewish, Pagan, and Christian, indicate that Gentile Believers had an almost universal practice of celebrating Chanukah up until this decree was given by Constantine in 325 A.D. Constantine deemed Chanukah to be "too Jewish." Since the Nazratim, those who were Jewish believers in Yeshua, refused to follow the lead of the Gentile Church and allow Constantine to appoint their officers, Constantine was determined to cut all ties between the Jewish and Gentile components of the Ecclesia. The pagan winter solstice rituals of late December coincided with Chanukah on the 25th of Kislev. Most of the rites and rituals of that pagan holiday were used to replace Chanukah to create Christmas, which was set to be celebrated on December 25. This was thinly disguised with a "Christian" veneer by arbitrarily saying it was the Messiah’s birthday.
Yeshua is shown celebrating the feast of Dedication (Chanukah means "Dedication") in John 10:22,23. It is at this celebration that He declares "I and My Father are One" [John 10:30], which testifies to His Divine origin in His conception. It also reinforces Chanukah as the time of His conception.]--read it all.
"Why December 25th?"--Christian History
"Anti-Semitic Decrees of Constantine and His Sucessors..."-here.