Subsequent popes from Julius II on, however, took its authenticity for granted.
In 1453 Geoffroi de Charnay’s granddaughter Marguerite gave the shroud to the house of Savoy at Chambéry, and there it was damaged by fire and water in 1532.
It was moved to the new Savoyard capital of Turin in 1578.
Ever since, it has been publicly exhibited only rarely, as, in recent times, on the marriage of Prince Umberto (1931) and on the 400th anniversary of its arrival in Turin (1978).
"His good idea was to wrap the sheet over the person underneath because he didn't want to obtain an image that was too obviously a painting or a drawing, so with this procedure you get a strange image," said Garlaschelli. He undertook the research out of personal interest, he said.
"As a hobby I am interested in mysteries, and the Shroud of Turin is obviously a very mysterious object," he said.
Upon receiving the results of the tests, the Vatican encouraged scientists to conduct further investigations of the shroud’s authenticity and recommended that Christians continue to venerate the shroud as an inspiring image of Christ.
(CNN) -- An Italian scientist says he has reproduced one of the world's most famous Catholic relics, the Shroud of Turin, to support his belief it is a medieval fake, not the cloth Jesus was buried in.
It was early noticed (1898) that the sepia-tone images on the shroud seem to have the character of photographic negatives rather than positives.
He described himself as a rationalist, but said he is not specifically anti-religious.