I've since gone and done some re-reading and what has struck me is the difference between academic historians and internet historians. Internet historians grab at disconnected facts and wield them out of context. For example, take Mithras. Internet historians point out that he predates Jesus by around 1400 years; that he was born on Dec 25, to a virgin, in a cave; that he offered eternal life by spilling his blood; that he was buried in a tomb and rose again 3 days later; and that he said, 'He who shall not eat of my body nor drink of my blood so that he may be one with me and I with him, shall not be saved.'
Pretty devastating for a Christian, huh?
Well, no. You see, there were two Mithras in antiquity. The Persians first mention Mithra in around 1400BC, though more recent scholarship suggests that the date is more like 700BC. And the Romans had a Mithra(s), too. But scholars have been unable to find any connection between the two. All of the parallels between Jesus and Mithras mentioned above are parallels with the Roman Mithras. And here's the clanger: he came after Jesus.
In other words, the claims about Jesus were not derived from stories about Mithras. It's the other way around. The earliest record of a narrative about the Roman Mithras is dated at least 100 years after the manuscripts of the New Testament. The only specific mention of a Mithraic offer of eternal life exists in a piece of writing dated to 200A.D.
But it gets worse. Mithras was not born from a virgin, in a cave. According to the Mithraic tradition, he was born fully formed, from rock, and when he moved he left a cave behind. There is no mention of a virgin. The blood by which he saves is not the blood of Mithras, but of a bull he slaughtered. Christians have never suggested that the birthday of Jesus was Dec 25 - it was just a day we borrowed from existing pagan celebrations (along with Easter). The only reference to a Mithraic resurrection is from the writings of Tertullian, an early Church father. And scholars have attributed the eating/drinking saying to Zarathustra, not Mithras.
So where does all this misinformation come from? Well, the stuff about Mithras comes largely from a 1903 work by a Belgian scholar called Franz Cumont. However, the idea that Jesus is an amalgam of various figures derives from the discredited and largely abandoned Religionsgeschichte (History of Religions) movement which was much in vogue in the 19th century. It depended largely on lacking or overlooking accurate dating of manuscripts, which is why it has now largely absent in peer-reviewed scholarship. Like all memes, though, it has found a home among the hyper-skeptics of the web, who lovingly tend the trash of earlier eras.
Tragically, I had none of this to hand on Thursday night. But then again, I also don't retain a structured critique (with academic testimony) of the notion that black holes are very large gerbils with an eating disorder.



