Lucky Ducky - just the major ones, (Zoroastrianism, Judaism, Buddhism, Hinduism, Christianity, Islam) the idea is that religion is progressive, there is only one God, what is revealed is in accordance with our understanding and the needs of the time - the message gets perverted over time so it needs renewing and updated to suit changing conditions, but the basic spiritual truths are the same and unchanging. A simple example is that in Islam for example, given that Muhammad was talking to nomadic tent dwellers, cutting off the hand of a thief made sense to protect the community, (but there were strict conditions attached to it), today of course, it is needlessly cruel.