Hi Jason,
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I find the best way to visualise these ancient connections is via Discover's . However, if you do this, you will see no ancient connections listed!
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There is a reason for this - all these ancient connections are a very long way back in the past. The key date for you is the "shared ancestor" dates. These show that your closest relation with these ancient DNA results (Pruszcz Gdański 479, Koksijde 15, Groningen 12, Nagytarcsa 19 and Denmark Historical 3) is about 2150 BC. In other words, these individuals may have lived in the medieval or even modern time periods, but even your closest relations among them aren't related to you in the last 4000 years or so. They have very limited relevance to your family's story.
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To understand the history of your male lineage, you might be interested in . This doesn't go quite as detailed as R-FTE23068, but it does cover R-FGC14877 on page 32. I think a Scandinavian origin is less likely. North-western Europe is probably more likely, with a migration to the British Isles taking place probably at some point in the first millennium AD (i.e., any time from the Roman era up to the Norman conquest).
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Best wishes,
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Iain.