When was Jesus' blood type ascertained, by whom, and how? .
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As shown, the shroud has been contaminated with DNA from plants that can be found all over the world. Similarly, their analysis of human DNA showed haplogroups from people originating in Europe, south Asia, eastern Africa, and the Middle East. So, what does this mean?
It's hard to say. According to legend, the shroud moved around quite a bit, from Jerusalem to Turkey to France and to its final resting place in Turin, Italy. The DNA evidence confirms that many different people, from many different places, got their hands on or near the shroud.
What still remains unclear is the shroud's origin. The DNA evidence is consistent with more than one explanation: (1) The shroud really did originate in Israel and traveled extensively before making its way to Italy, or (2) The shroud was created in medieval Europe, but worshipers (and plants) from all over the world that made their way to Europe contaminated it. The authors cannot rule out either explanation. (Intriguingly, the authors suggested that the DNA evidence linked to people from India hints that the shroud may have been weaved there.)
For now, despite this rich new body of evidence, it seems the Shroud of Turin will remain shrouded in mystery.
Source: Gianni Barcaccia, Giulio Galla, Alessandro Achilli, Anna Olivieri & Antonio Torroni. "Uncovering the sources of DNA found on the Turin Shroud."
Scientific Reports 5, Article number: 14484. Published online: 5-Oct-2015. doi:10.1038/srep14484
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https://www.realclearscience.com/jo...d_of_turin_dna_comes_from_all_over_world.html