The Definitive Shroud of Turin FAQ

the shroud draws you in, doesn't let go, and reveals itself gradually

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Why is the blood red or brown? Shouldn't it be black?

It is a good question. It is heard often. Skeptics will sometimes claim that the blood cannot be real because old blood is black. Actually, old blood often just turns brown. That all old blood turns black is overstated.

Old blood is not always black. Two factors will keep bloodstains from losing all or most of their red color:

The argument, however, is pointless. The bloodstains are known to be from real blood.

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