This is a visual summary of the hypothetical recruitment by the Roman Legions of a man of the E-V13 haplogroup and E-BY4793 subclade, born in the Balkans early in the first millennium and assigned to military duty in what is now Swabia. It is adapted from the The Timeline at Family Tree DNA with the addition of our notes highlighting the most active period of Roman recruitment in the Balkans, the hypothetical Roman recruit who might have been garrisoned in Swabia with the Legions during this period, and information about early known male lineage ancestors of the related Y-DNA test subjects.
Note that while this migrant, possibly arriving among Roman Legionnaires, would likely have been in clade E-BY4793, there is a chance (perhaps about 1 in 10) that the E-BY165986 mutation occurred among his recent ancestors or at his own conception before leaving the Balkans. This 10% is very rough, assuming the variant would have occurred very early in the probability interval assigned by Family Tree DNA and rather late in the recruiting period for Roman recruitment in the Balkans. Moreover, while all of our identified descendants in Swabia carried the E-BY165986 variant, that does not preclude the possibilities that other lineages branched off after the migration to Swabia but before the mutation.

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