history is totally cool

When I was little, and went to school, I didn't give a shit. NOW, I do....

History is AWESOME now, I read up on shit all the time. I read up on Norwegian history, cus I'm from Norway, I read up on Spanish and Peruvian, cus I'm from there too, then I read up on places I'm not from at all, all of them, systematically, I want to know everything!

But then i also know, that all written history - is just that: Some dude (usually, most likely a dude.) wrote this. Not only once, but like a billion times over, in tons of languages, and in many different ways of expressing something.
This is especially problematic in Norwegian history, where you dont have to go very far back, before a lot becomes guesswork, and you have to look at drunken songs in order to reveal actual history.
If a drunken song is your ONLY source for an important battle, you know for sure took place, and the song goes on about "tens of thousands of men", what do you then write into the history book?
Such numbers have indeed been used in old sources, but the population of Scandinavia as a whole, at the time, would rarely allow for such armies to gather, its likely no such armies were raised untill at least well after the medieval era was over.
The only refuge against very "uncertain" history, somehow, at least for me, becomes to go further back, to when everything inevitably becomes uncertain by default.
My city name for example, Trondheim, both roots Trond and Heim are ancient. Heim means home, and Trond is a tribal name.
The interesting part is this: the region has ALWAYS been "Trondheim", even after we forgot who the "Trond" or "Trønder" was, even the vikings had probably forgotten, but they also used the same names. Same goes for Rogaland and Hordaland, of the Roga and Hordar. Estimates put the "activity" of these tribal kingdoms several thousand years back.
The "Dane" of Denmark, whos ancient name was "Daneland", is also of unknown ancient tribal origin. Nobody knows who the "Dane" originally was, except that they were, along with the Tronds, Rogar, Hordar, Svear and Götar, they were pre-nordic germanic tribes, who quite possible had the exact same language at this time, its possible that they did not even have had the time to develop regional dialects, as these became apparent as late as the viking age.