The origins of the shroud and its images are the subject of intense debate among theologians, historians and other researchers.
Diverse arguments have been made in scientific and popular publications claiming to prove that the cloth is the authentic burial shroud of Jesus, based on disciplines ranging from chemistry to biology and medical forensics to optical image analysis.
There are some burn holes and scorched areas down both sides of the linen, caused by contact with molten silver during the fire that burned through it in places while it was folded.
The historical records for the shroud can be separated into two time periods: before 1390 and from 1390 to the present.
A drop of molten silver from the reliquary produced a symmetrically placed mark through the layers of the folded cloth.
Poor Clare Nuns attempted to repair this damage with patches.
However the correspondence of this shroud in Lirey with the shroud in Turin, and its origin has been debated by scholars and lay authors, with statements of forgery attributed to artists born a century apart.Reddish-brown stains are found on the cloth, showing various wounds that, according to proponents, correlate with the yellowish image, the pathophysiology of crucifixion, and the Biblical description of the death of Jesus.The details of the image on the shroud are not easily seen with the naked eye, but they can be more clearly revealed through photography.In 1988, three radiocarbon dating tests dated a corner piece of the shroud from the Middle Ages, between the years 12, which is consistent with the shroud's first known exhibition in France in 1357.The image on the shroud is much clearer in black-and-white negative than in its natural sepia color, and this negative image was first observed in 1898 on the reverse photographic plate of amateur photographer Secondo Pia, who was allowed to photograph it while it was being exhibited.In May 1898 Italian photographer Secondo Pia was allowed to photograph the shroud. Pia was startled by the visible image of the negative plate, implying that the shroud is effectively a negative of some kind.The shroud was damaged in a fire in 1532 in the chapel in Chambery, France.A variety of methods have been proposed for the formation of the image, but the actual method used has not yet been conclusively identified.Despite numerous investigations and tests, the status of the Shroud of Turin remains murky, and the nature of the image and how it was fixed on the cloth remain puzzling.in the chapel built for that purpose by Guarino Guarini) and in the 19th century it was first photographed during a public exhibition.In 1532, the shroud suffered damage from a fire in a chapel of Chambéry, capital of the Savoy region, where it was stored.