Old School Abyss Question (FC:1 by Jacobs & Mona)

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In the 3.5 Fiendish Codex 1: "Hordes of the Abyss" by James Jacobs, Erik Mona & Ed Stark, we are introduced to an NPC named Tulket nor Ahm who is the first Concordancer or Cataloger of The Abyss. It's implied that Tulket nor Ahm Numbered the Layers so, like, Demogorgon's Layer is the 88th because it was the 88th that Tulket nor Ahm catalogued and wrote a concordance of. And Orcus is on Layer 113 because it was the 113th Layer discovered by Tulket nor Ahm, etc., and etc.

As it turns out, in my current campaign I could benefit from a little more information regarding Tulket nor Ahm and am trying to find his publication history.

Is FC1 the first place where this character is published?

I couldn't find anything else from the 80s or 90s but, you know, the sheer volume of articles in Dragon Magazine (issues #1-#359) is pretty massive. There is a huge chance that if there's an article on Tulket nor Ahm that I just don't know it -- and maybe don't even have it. (And that's just Dragon Magazine; there could be other sources from where The Black Scrolls of Ahm were first published.)

If anyone knows, I'd Really appreciate it.

....

Also, if the FC1 is the first appearance of Tulket nor Ahm, just out of curiosity, is he a creation of Ed Starks'?, Erik Mona's?, or James Jacobs'? (I dunno, the naming convention "Tulket nor Ahm" sounds a little more the style of Erik Mona, but I'm kinda interested, one way or another. Of course, it could be a Carl Sargent creation and I just missed it.)

Thanks anyone who has an answer!!!!