premise: Christmas Eve is the day before Christmas Day, the festival commemorating the birth of Jesus of Nazareth. Christmas Day is observed around the world, and Christmas Eve is widely observed as a full or partial holiday in anticipation of Christmas Day. Together, both days are considered one of the most culturally significant celebrations in Christendom and Western society.
hypothesis: Jesus of Nazareth was a real person.
reason: While there has been research directed at the question of Jesus actually existing, whether he existed as the person from the stories or not is still a question.