alternatehistory.com

This idea just popped into my head.

Say around 900 or 1000 a European ship follows the vikings around the north Atlantic, shows up in north America and some how establishes a community which survives in novascotia or new england.

This community is tied into the European cultural system and develops a form of feudalism to defend it against the clearly put off natives, who while getting sick are not as outgunned simply for the lack of guns. This requires the christian European settlers to form manors and the new higher lords to delegate out land to keep things safe.
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