Shroud of Turin is a former featured article. Please see the links under Article milestones below for its original nomination page (for older articles, check the nomination archive) and why it was removed.
	This article appeared on Wikipedia's Main Page as Today's featured article on December 25, 2004.
Article milestones Date Process Result October 15, 2004 Featured article candidate Promoted November 29, 2007 Featured article review Demoted October 23, 2010 Good article nominee Not listed
Current status: Former featured article

This  level-5 vital article is rated B-class on Wikipedia's content assessment scale. It is of interest to multiple WikiProjects.

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It has been claimed that the blood is AB group, but that would actually debunk the claim that the blood is Ancient. Since AB group appeared in the Middle Ages or Early Modern period. tgeorgescu (talk) 05:00, 21 September 2025 (UTC)[reply]

@Tgeorgescu Have they tested its DNA to see if the blood originates from someone Jewish, or to determine the ethnicity of the blood donor of the Shroud? Stevenmitchell (talk) 14:32, 5 October 2025 (UTC)[reply]

No. Part of the problem is that researchers can only work with a very small number of very tiny samples, becuase no one wants to damage the artifact. Also, blood degrades over time. It's not likely that one could get viable DNA from a sample that is seven or eight hundred years old, much less two thousand. It is also not trivial to determine blood type on a sample that old, which is why the "type AB" result is disputed. The chemical markers that determine blood type degrade over time.

Another problem is contamination. There have been DNA studies done on the Shroud. They found DNA from many different people because over the centuries many people have touched or handled the shroud. There is no way to determine which if any of those DNA samples might have come from the time of the shroud's creation.--Srleffler (talk) 16:33, 5 October 2025 (UTC)[reply]

We now have:

It has been claimed that the blood is AB group and that this implies the source was a Semitic person, but both claims are dubious.^[1] A previous study in 2020 showed that there is no definitive assignment of human nor primate blood on the Shroud, but the "blood is most correctly classified as species unknown."^[2]

I don't think this makes much sense as the 2025 source says "Thus, it can no longer be claimed that the blood on the Shroud has been scientifically demonstrated to be of human, or even primate, origin. " Surely we don't need both? I'd argue that we just keep the 2025 source but change the text it sources.

Doug Weller talk 13:50, 8 October 2025 (UTC)[reply]

just keep the 2025 source but change the text I agree. JoJo Anthrax (talk) 14:14, 8 October 2025 (UTC)[reply]

Agreed. Squatch347 (talk) 16:36, 8 October 2025 (UTC)[reply]