Vaticinium ex eventu

Vaticinium ex eventu (Classical Latin: [wäːt̪ɪˈkɪnɪ.ʊ̃ˑ ɛks eːˈwɛn̪t̪uː], "prophecy from the event") or post eventum ("after the event") is a technical theological or historiographical term referring to a prophecy written after the author already had information about the events being "foretold". The text is written so as to appear that the prophecy had taken place before the event, when in fact it was written after the events supposedly predicted. Vaticinium ex eventu is a form of hindsight bias. The concept is similar to postdiction.