This happened after Christianity broke off from Messianism/ Natsarim a sect of Jews and Gentiles worshipping together. Yeshua(Jesus) the meshiach (messiah=christ) was understood prior to this. But yes I except that Christianity did incorporate many other worldviews practices inorder to divide from its origin. Christmas instead of Hanukkah , easter instead of passover , sunday instead of sabbath, Greek worldview abstract subjective thought over Hebrew concrete action integrity.