To non-believers, this sounds like an ad hoc hypothesis. The suggestions that modern biological contaminants were sufficient to modernize the date are also ridiculous.A weight of 20th century carbon equaling nearly two times the weight of the Shroud carbon itself would be required to change a 1st century date to the 14th century (see It may interest skeptics to know that many people of faith believe that there is scientific evidence which supports their belief in the shroud's authenticity.Most skeptics think the image is not a burial shroud, but a painting and a pious hoax. In 1988, the Vatican allowed the shroud to be dated by three independent sources--Oxford University, the University of Arizona, and the Swiss Federal Institute of Technology--and each of them dated the cloth as originating in medieval times, around 1350.
"So far, they had been attributed to marks caused by flogging wounds." But it soon became clear to researchers that not all the stains on the shroud came from a living person.
When put under an infrared filter, some of the stains became invisible.
The author claims that historical, iconographic, pathological, physical, and chemical evidence points to its inauthenticity.
The shroud is a 14th century painting, not a 2000-year-old cloth with Jesus's image.
John in chapter 19 of his Gospel: "One of the soldiers with a spear opened his side, and immeidately there came out blood and water.
And he that saw it, hath given testimony; and his testimony is true.And he knoweth that he saith true; that you also may believe." Though not as famous as the Shroud of Turin, the Shroud of Oviedo, which is believed to be the cloth wrapped around the head of Christ, has aroused similar devotion, likewise fostering discussions over its authenticity.The Oviedo Shroud has been housed in the cathedral town of Oviedo in northern Spain since the 11th century.Of course, the evidence is limited almost exclusively to pointing out facts that would be true the shroud were authentic.For example, it is claimed to be the negative image of a crucifixion victim.MURCIA, Spain (Church Militant.com) - Groundbreaking new research reveals the Shroud of Turin — believed to be the burial shroud of Christ — shows marks indicating a spear wound consistent with that of Our Lord depicted in the gospels.