I think it would be silly to only pick on Christianity here. Humans have surely been celebrating the same times of the year since before we have record of these celebrations.
Basically every traditional holiday is a remnant of a celebration of an equinox or solstice. Christianity surely stole Christmas from pre-Christian religions, but those religions also likely stole their holidays from religions that pre-date them.
Narabug t1_j1o11u3 wrote
Reply to comment by Igmu_TL in TIL about Saturnalia - a Roman Holiday held between 17 - 23 December. The holiday was celebrated with a sacrifice at the Temple of Saturn, in the Roman Forum, and a public banquet, followed by private gift-giving, continual partying, and a carnival atmosphere. by TurboBennett
I think it would be silly to only pick on Christianity here. Humans have surely been celebrating the same times of the year since before we have record of these celebrations.
Basically every traditional holiday is a remnant of a celebration of an equinox or solstice. Christianity surely stole Christmas from pre-Christian religions, but those religions also likely stole their holidays from religions that pre-date them.