just look at the entire environment of oblivion, it’s supposed to be a jungle.
There are a million explanations for why Cyrodiil is no longer (or perhaps never was) a jungle. That, in itself, has become an interesting bit of lore.
Or just the nine divines. In the north they have different names(and meanings), but in game the nords for some reason have exactly the same faith as the imperials.
Because two hundred years ago, a god invaded the world and was then beaten in physical combat by a physical manifestation of Akatosh, one of the nine divines. When your god physically manifests and saves the world, that will drive a lot of interest in your religion.
the northern name of Akatosh is supposed to be Alduin. Alduin is not just some evil dragon in the lore but an aspect of the highest of the nine divines. Not ever talked about in game.
The thing about what we hear in the lore is that it can be wrong. Many of the gods have several known aspects. Akatosh to the Empire, Alkosh to the Khajiit, Alduin to the Nords? But either the person who wrote that last part misunderstood the Nords' religion or the Nords themselves in their tradition misunderstood the nature of Akatosh/Alduin. Or, to take another route, it could easily be argued that Alduin is simply an aspect of Akatosh, regardless of how it is framed. I mean, really, you could say all dragons are aspects of Akatosh, or perhaps pieces of Akatosh or avatars of Akatosh, depending on how you want to look at it. Akatosh is time deified. Alduin is the end of time.
Nords are supposed to run around with necklaces if tongues and not use sirge engines because they bring doen the walls with their shouts.
They were said to have done those things a very long time ago, yes, but things change. Skyrim's culture was irreparably changed by the Battle at Red Mountain. Jurgen Windcaller led a movement to completely pacify the concept of shouting, to leave its uses for war behind and to use it only to worship Kyne. That's where the Greybeards come from, and where the warrior-Tongues went. All of this is part of the main quest of the game, you can't miss it.
There are a million explanations for why Cyrodiil is no longer (or perhaps never was) a jungle. That, in itself, has become an interesting bit of lore.
Because two hundred years ago, a god invaded the world and was then beaten in physical combat by a physical manifestation of Akatosh, one of the nine divines. When your god physically manifests and saves the world, that will drive a lot of interest in your religion.
The thing about what we hear in the lore is that it can be wrong. Many of the gods have several known aspects. Akatosh to the Empire, Alkosh to the Khajiit, Alduin to the Nords? But either the person who wrote that last part misunderstood the Nords' religion or the Nords themselves in their tradition misunderstood the nature of Akatosh/Alduin. Or, to take another route, it could easily be argued that Alduin is simply an aspect of Akatosh, regardless of how it is framed. I mean, really, you could say all dragons are aspects of Akatosh, or perhaps pieces of Akatosh or avatars of Akatosh, depending on how you want to look at it. Akatosh is time deified. Alduin is the end of time.
They were said to have done those things a very long time ago, yes, but things change. Skyrim's culture was irreparably changed by the Battle at Red Mountain. Jurgen Windcaller led a movement to completely pacify the concept of shouting, to leave its uses for war behind and to use it only to worship Kyne. That's where the Greybeards come from, and where the warrior-Tongues went. All of this is part of the main quest of the game, you can't miss it.