Was hat in der Geschichte Norwegens dazu geführt, dass sich seine Nordgrenze um Schweden und Finnland legte und so den Zugang zur norwegischen See/Barentssee versperrte?

If you write that question in google-machine, this comes up: https://nordnorge.com/en/artikkel/how-northern-norway-became-norwegian/

Norwegians settled the coast. The inland was inhabited by Sami. They just carved the inland up, mostly based on the seasonal migration pattern of the Sami.

Hmmm ocean

There is 2 parts to this: 1) noone wanted to be there and noone wanted it, therefor norway just got it as free area where people could do inbreading and hunt whatever was outside their hut 2) Trolls

Before railroads and cars traveling by water was far easier than traveling by land, even when the land had gentle terrain. And the terrain in northern Scandinavia is far from gentle.

The Soviets stole Finland’s piece [in 1940](https://en.wikipedia.org/wiki/Moscow_Peace_Treaty)…