what religion doesn't celebrate christmas or birthdays

Some religions, such as Judaism and Islam, do not celebrate Christmas or birthdays. These religions focus more on celebrating religious holidays and festivals, such as Hanukkah, Eid, and Ramadan. These religions also have their own unique traditions and rituals, such as fasting, praying, and giving to charity. While these religions may not celebrate Christmas or birthdays, they still recognize the importance of family, community, and giving back to others.