Carbon dating and shroud of turin
In October 1987, the offers from three AMS laboratories (Arizona, Oxford and Zurich) were selected by the Archbishop of Turin, Pontifical Custodian of the shroud, acting on instructions from the Holy See, owner of the shroud. Samples weighing 50 mg from two of the three controls were similarly packaged.At the same time, the British Museum was invited to help in the certification of the samples provided and in the statistical analysis of the results. The age of the shroud is obtained as AD 1260-1390, with at least 95% confidence. The three containers containing the shroud (to be referred to as sample 1) and two control samples (samples 2 and 3) were then handed to representatives of each of the three laboratories together with a sample of the third control (sample 4), which was in the form of threads.After many journeys the shroud was finally brought to Turin in 1578 where, in 1694, it was placed in the royal chapel of Turin Cathedral in a specially designed shrine.Photography of the shroud by Secondo Pia in 1898 indicated that the image resembled a photographic 'negative' and represents the first modern study.However, the raw data were never released by the institutions. PERNAGALLO Department of Economics and Business, University of Catania, Corso Italia 55, 95129 Catania CT, Italy and B.In 2017, in response to a legal request, all raw data kept by the British Museum were made accessible. TORRISI Department of Economics and Business, University of Catania, Corso Italia 55, 95129 Catania CT, Italy Fair Use Quote: A telling tidbit from page 6 of 9: The same rationale applies to the intra-laboratory differences.
Among those present when the sample as cut from the shroud were Cardinal Anastasio Ballestrero (Archbishop of Turin), Professor L. The laboratories were not told which container held the shroud sample.After these initial cleaning procedures, each laboratory split the samples for further treatment.The Arizona group split each sample into four subsamples.As Controls, three samples whose ages had been determined independently were also dated.The results provide conclusive evidence that the linen of the Shroud of Turin is mediaeval.