Yes, Christmas is indeed a holiday with pagan origins. The date of December 25th was originally chosen as a way to celebrate the birth of the sun god, Sol Invictus, who was believed to be born on the winter solstice. As Christianity began to spread throughout the Roman Empire, the holiday was gradually adopted and transformed into the Christian celebration of the birth of Jesus Christ. Today, the holiday has evolved into a blend of Christian and pagan traditions, with many people celebrating both the religious aspect and the secular aspects of the holiday.