But I still have questions:
-Who/what are the Thalmor? It seems to me from the information that they're either just Altmer, or an Altmer-Bosmer hybrid?
-What are they and why did they suddenly get the power to take half the Empire? Even in a weakened state I can't imagine a single province or two being able to take over so much land and sack the Imperial City.
-Where are they from?
-Why did they want to outlaw Talos worship so much?
1. It's the government of the Summerset Isles, Valenwood, and their client states Anequina & Pelletine which you might no better as Elsweyr.
2. They are Altmer, Bosmer, and Khajiit
3. Summerset Isles, Valenwood Elsweyr
4. Because they don't believe he is a god and think it's heretical to worship him as such.