According to the news published on Twitter
Based on a study that will be released in the future by Harvard.
A ancient sample from the Bronze Age in Khaybar (saudi arabia) >> Y haplogroup T
And a ancient sample from Yemen from the Iron Age has >>Y haplogroup J1
And two ancient samples from Socotra Island in Yemen >> Y haplogroup J1 and J2
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Ancient report
Vast 4,500-year-old highway network of 'funerary avenues' stretching for thousands of miles and lined with Bronze Age tombs is uncovered in Saudi Arabia
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