Vyatichs - called "Oka Basin Slavs" in some sources

Viatichi (VIA-tee-chee) were the easternmost Slavic tribe, which was fully subdued and Christianised only by the end of 12th century. Their legendary leader was Viatko, a short from of the name "Viacheslav", and they according to Primary Chronicle are too a bunch of settlers that came from Lendians, which rather quickly asimilated the Finns of Upper Oka. They of course were never called "Oka Basin Slavs" initially, it's a later academic term. They were very numerous and populous. I disagree with your notion, that they didn't colonise the Moscow area by the starting date. According to what I've read (it's in Russian), they pretty firmly did, as evidenced by archeology.


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