This is the same argument used to justify the dispossession of the First Nations here in North America - it wasn't accurate here, and it wasn't accurate in the context of the Northern Crusades.
In both cases the colonizers came in and settled on lands that another group had claim to - the idea that they "took possession" of unoccupied lands is a fairytale that we tell ourselves so that we don't need to face the reality that our ancestors did not respect the title claim of others, took the land and quite often killed or drove them away. We tell ourselves that we brought the benefits of higher civilization to the area when in fact, we were only able to succeed at what we did because of an edge in military science or military organization, rather than the a vast technological difference.
The difference between the Balts and the Baltic Crusaders was military organization, rather than a vastly technologically, culturally and organizationally superior force meeting an inferior one, akin to the Romans going after the Gauls. The Baltic Germans got to write the histories afterwards to make it look like they were bringing the light of civilization to the benighted Balts, which justified their rule over the lesser people for centuries.
It is rather strange that history doesn't seem to go back much beyond 7K-8K years ago (the ancient Egyptians and Chinese) and yet humans have roamed the earth for at least 250m years, according to the archaeologists (from carbon dating). So I do often wonder, what happened to all these ancient peoples. They obviously can't all have been completely illiterate, and when you consider how tiny the earth's population used to be even 1,000 years ago, one has to wonder, what happened to all these people. What happened to the Neanderthals. Well, we know in their case, they either became extinct or they were genocided.
The other day another poster said we have no idea who the people populating Ireland and Scotland were as we have no records and the 'picts' are a fanciful myth. Isn't that odd? No records beyond circa AD900, and for most people, the Vikings represent something ancient an exotic, yet, hello? they only go back to AD900 for pete's sake.
So what was happening on earth 1,500 years ago? Was it all destroyed? Or did it never exist, anyway?
We are taught that Columbus and Cook discovered various parts of the world, and Scott the Antarctic, and Hilary was first to achieve Mt Everest, and we swallow all this obvious ********.
AFAIK the Native Americans lived as nomadic tribes. From Ancient DNA studies, we know they crossed from Asia over the Bering Strait and into North America. They share the same DNA as Asian people today.
When the early settlers arrived in the USA circa 1600's (and the Spanish in the south in the 1400's) they were either religious dissidents who were forced to leave Britain or they were political dissidents, such as the Levellers or supporters of Catholic King Charles II after he was deposed and beheaded. Others were convicts transported to the New World as punishment.
The main group, however, were Venturers, who set up companies in Virginia, with James Town being one of the earliest established 'towns'.
The early settler suffered regular raids by the Native Americans and they fought back with guns. It all got very bloody. However, apart from the tribes of Native Americans, North America wasn't 'settled'
per se. I admit it is rather odd that US history only seems to start in 1624.
The comment about crusaders bring civilisation or otherwise the Nordic masses would still be worshipping Odin, Perkele or Baba Yaga, and living like beasts was - hello? -
tongue-in cheek.