I know that FFT and FFXIV are different stories, but bear with me a sec.

Assume for a moment that Goug, despite its advanced technology, probably has little to do with Allag, except maybe building up technology on what was left behind. Their styles are very different.

The Allagan Empire rises to power and hits its height in the 3rd Astral Era. Causes a calamity that brings about the end of the era.

Goug rises to power far and away from Eorzea. Builds the Clockwork City, establishes itself during the 4th Astral Era. Goug gets wiped out during the calamity that ended the 4th Astral Era, probably as an innocent bystander. Vestiges of Goug exist on into the 5th as slums and ruins, as established in FFT.

Ivalice rises to power during the 5th Astral Era. The War of the Lions and the Glabados Church take root in this era. They're a continent away from what's happening with the War of the Magi back in Eorzea, but as most calamities do, Ivalice becomes an innocent casualty of that era-ending calamity.

Dalmasca rises to power on the ruins of Ivalice during the 6th Astral Era. As the era nears its close, they are occupied by the Garlean Empire. The calamity that ends the 6th, the infamous Bahamut, was a calamity muted by the incredible work of Louisoix and the Warriors of Light. Most of the nations of the 6th survive in one form or another into the 7th Astral, which is where we are now.

I don't have a lot of textual research to back up my thinking, just a lot of fond memories of playing FFT back in the day, what I just learned of Ivalice in the FFXIV timeline and a theory that seems to fit the facts without a lot of evidence against it.

Thoughts?

Thanks for reading!!