Familytreedna confirmed, the Finnish I1 is 2200-2600 years old
A new Familytreedna's report connects your Ydna to ancient samples. Here is mine. CTS7676 and its downstrean mutations are purely Swedish, with only exception of the L287, which is purely Finnish. Only L287s found in Scandinavia have had Finnish roots. So the shift from Sweden to Finland happened between mutations CTS7676 and L287. In this time frame Scandinavians spoke proto-Germanic. Finnish researchers yet deny that Germanic language was spoken in Finland before Swedish crusades.
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