Evidence: the recent fad regarding this man's book.
From First Things: Reza Aslan Misrepresents His Scholarly Credentials
None of these degrees is in history, so Aslan’s repeated claims that he has “a Ph.D. in the history of religions” and that he is “a historian” are false. Nor is “professor of religions” what he does “for a living.” He is an associate professor in the Creative Writing program at the University of California, Riverside, where his terminal MFA in fiction from Iowa is his relevant academic credential. It appears he has taught some courses on Islam in the past, and he may do so now, moonlighting from his creative writing duties at Riverside. Aslan has been a busy popular writer, and he is certainly a tireless self-promoter, but he is nowhere known in the academic world as a scholar of the history of religion. And a scholarly historian of early Christianity? Nope.Ah, yes. But Americans prefer fads (a Muslim writing about Jesus!) over truth (the Gospel).