Christianity Vs. Other Ancient Religions
I have read time and again that there are parallels between Christianity and mystery religions, Egyptian beliefs, Babylonian beliefs, Zoroastrianism, etc. But, I have never been able to find any primary source documentation of what these religions believed prior to the time of Christ. If all of the documentation is based on manuscripts that date to after the time of Christ, then how do we know which religion did the influencing? I just have no idea where to find a reliable source of primary source information. Any recommendations? Thanks!