He called himself Dionysius the Areopagite, namely the man who was with Paul and who received much wisdom from him. This man was accepted as the real Dionysius who talked with Paul, when he gave to his books this name. This was of course in our terminology a falsification. But it was the usage of ancient writing, so it was not a betrayal in any technical or moral sense; but it was a matter of launching books under famous names. Not until the 16th and in some cases even the 19th century was this falsification scientifically discovered. Not even the Catholics doubt about. it. It is a historically established fact that the man who wrote these books wrote actually about 500 and that he used the name of the companion of Paul in Athens in order to give authority to his books. He was translated into Latin by the first great Western theologian of the New World, namely Scotus Eriugena, ca. 840.