The origins of Christmas being celebrated on December 25th date back to the 4th century when the Roman Catholic Church chose that date to commemorate the birth of Jesus Christ. The early Church chose this date because it was close to the winter solstice, which was a significant pagan holiday at the time. The Church also wanted to give the pagan celebrations a Christian meaning. Over the centuries, the date became firmly established as the day to celebrate the birth of Jesus Christ, and it has remained so ever since.