Christmas-How Did December 25th Get To Be The Date For Christmas To Be On?

You ask a lot of questions about Christmas, I'm kinda curious why. The answer to your question is easy though. The catholic church, when the holy roman empire invaded countries, would adopt the dates that the conquered people celebrated their holidays. They would do this so the people would find excepting the new religion easier. When they conquered Europe the native "pagans" or polytheists celebrated the "death" of the years cycle and the birth of a new one. Dec. 21st is the longest day of the year and the pentacle of their celebration and it would go for 7 days or so. So the church decreed that this would be the celebrated day on which the birth of Christ was to be celebrated. It has since been adopted as the influence of Europe dominated much of the world. The funny one is Easter. We celebrate the death (also the rebirth sort of) of Jesus on what used to be the time/celebration of new life and fertility.

It is only Christmas for some, different religions and cultures have different date, Orthodox Christians celebrate Christmas in January for example, Jew and Muslims do not celebrate Christmas traditionally. The Catholic and Orthodox Church's had a disagreement on scripture and practices back in the Byzantine era and split then each taking there own beliefs and practices and separating the two Christian religions prior to the protestant reformation.

At the time of the early Christian church December 25th was a pagan festival celebrating the birth of some pagan gods. The early Christians chose that day to establish a rival celebration to reveal to the pagans the true God. They were not adopting or Christianizing the pagan festival, but creating a rival holiday. It worked. Few today know anything about those Greek and Roman Gods, but billions know who Jesus is.
KenQ

Well Christmas was when Jesus is born and that's why we give presents because Jesus was God's gift to us. I know you asked this question 3 years ago but I just wanna answer this.

It's a controversial question.  Some say it was changed because of another holiday and the church calendar.