2025 marks the 1700th anniversary of the First Council of Nicaea, organized on the initiative of Emperor Constantine the Great (306-337) in the city of Nikaia/Nicaea (now Iznik), located on Lake Ascanius, then in Bithynia, on the western edge of Anatolia (today’s Türkiye). During this event, which was probably (the legends say so) attended by 318 bishops, it was established, among others: the basic principles of Christianity, expressed in the text of the Creed, still valid with minor changes to this day.

We examine historical sources, stories, legends… We verify where (we’re looking for the imperial palace!) and if really (?!) there was the First Council …These are the three main goals of the project.