"Beyond the central continent of Faerûn, Toril includes the regions of Al-Qadim, Kara-Tur, and Maztica."
This makes me oh so happy. Always loved Maztica and it is nice to see they returned it to its rightful place.
They're both equally fictional, and it might even explain why every floating disk spell in every D&D setting was invented by Tenser– magical techniques transcend planar boundaries, after all.
Of course, that said, the spell list could use some entries from recognized folks outside the Circle of Eight.
Just to nitpick, Al-Qadim isn't actually a region: the continent is called Zakhara.