The precise origin of assigning December 25 as the birth date of Jesus is unclear.
December 25 was first identified as the date of Jesus’ birth by Sextus Julius Africanus in 221
later became the universally accepted date as day of the birth of the unconquered sun
The Roman Empire celebrated the winter solstice as a symbol of the resurgence of the sun on 25 Dec
after that the date 'December 25' had become widely accepted as the date of Jesus’ birth
Christmas began to be widely celebrated with a specific liturgy in the 9th century
Christmas in Different Languages: Navidad in Spanish, Natale in Italian, Noël in French
The tradition of Christmas tree is believed to be started in Strasbourg in 1605
Christmas has also been a secular family holiday, observed by Christians and non-Christians alike
“Christmas is built upon a beautiful and intentional paradox; that the birth of the homeless should be celebrated in every home.” --G.K. Chesterton