"It is impossible to state with any certainty that the Crown of Thorns is authentic, though its documented history dates back to the 4th century." A quote about the Crown. Of course it goes back to the 4th century, that is when Constantine's Mother went to Jerusalem and returned with 'wonderful things'. That was the birth of christianity, and it was done by the Romans, and the relics would have been over 300 years old by the time of their finding (yeah right).