Throwback Thursday: A Secret Disclosed

In Salzburg one grave doesn't quite contain
The man it claims. Old Theophrastus, he
Whom we called Paracelcus, in the main
Cared nothing for our rules. He came to be
Immortal, and in just the way you think:
Through sublimation, transmutation, lead,
Through fire and smoke and water and a stink
That killed migrating wildfowl overhead.
Success was his, and so he had to fake
His sad demise. His name, too, was let die.
Restored to youth and vigor, he did make
Discoveries galore, but then this guy
Gave others credit. Now, though, he has fame
Again. Fox Mulder is his present name.