Spoiler
i was searching things about alduin on TES:wikia when i read something that made me instantly say "Whoa!".So in this article: http://elderscrolls.wikia.com/wiki/Gods it's sayng that the worship of the eight divides is not accepted in numerous empires,like in the Thalmor's and in the Dwarvens.Homever Akatosh can bee seing in almost all religions and mythologys,and of course we can see his actions on Nirn.Like:
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-Alduin trying to destroy the world in the Fourth Era.
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-The Warp in the West(or Numinidium).
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-The coming of the Aedra.
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-He showing himself at the battle with Mehrunes Dagon.[/spolier]
[spoiler]I may be wrong but only Akatosh majorly interacted with Nirn,while the other divines only appeard in "supposed dreams".But let's not forget Lorkhan,that in obvilion himself says that he stoled the planet of Nirn from the plane of Dagon.Causing his attemps to conquer Nirn.
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-He appear's himself to Alessia(the instituinor of the religion).
[spoiler]I may be wrong but only Akatosh majorly interacted with Nirn,while the other divines only appeard in "supposed dreams".But let's not forget Lorkhan,that in obvilion himself says that he stoled the planet of Nirn from the plane of Dagon.Causing his attemps to conquer Nirn.