structural:expansion, information:filtering
Comparing traditions

Religious ideologies can be systematically understood to have formed many major groups with tens of thousands of subbranches. It is a form of cultural evolution that can be intuitively illustrated with trees showing historical relationships and the diversification over time of the various traditions. Some of the most successful have been those religions that paired up with empires, kingdoms, or caliphates early in their history (e.g., Christianity, Islam, Hinduism, Buddhism). A few major groups of religion are given below.