"Dionamus was perhaps the first to discover the higher planes, making a connection initially with Celestia, which was later the inspiration for the creation of the Pool of Stars in Celest."

And yet all I've heard about Tresalyne is that he was the one who first made contact with Celestia.

Soooo... who is it?

The Elder Gods created Celestia, thats why the Soulless didn't feed off them. But I'm pretty sure the Aquamancers founded Celestia first, as they said that "Celestia was wrapped around Water Elemental Plane like a blanket" or something similar.

You mean found, not founded, Silvanus. They didn't found Celestia (as opposed to they did found it)as in create it, they found it, as in discovered it. (As opposed to they didn't find it. )

I believe Tresalyne was the first MORTAL to discover Celestia.

Tresalyne was the first mortal who discovered Celestia, using resources I won't say.

Slow, or just ignoring my post?

Dionymus (sp?) was a Vernal God, thus capable of more than a mortal.

Ignoring your post.