In 1995 the Greek Ministry of Culture announced that during excavation for the Athens metro system, archaeologists had uncovered what they believed to be the tomb of Socrates near the base of the Acropolis. A vase containing traces of hemlock (the poison used to kill socrates) and a piece of leather dating from between 400 and 390 BC were found in the tomb. The news agency Agence France-Presse immediately issued a release about the story. What it didn't realize was that the Greek Ministry was joking, forcing the news agency to issue an embarrassed retraction a few hours later.