Numerous interrelated prosopographic information about the historical persons of the decree in honour of Protogenes, as well as their ancestors, descendants and contemporaries, was obtained from objects of ceramic, magic epigraphy and numismatics. They confirm the previously proposed chronology of the events of the decree by the second-third quarter of the 3rd century BC. The Protogenes decree was adopted at the same time as the wall-building inscription of Cleombrot Pantaclus, of eponym 222 BC. Decree is absolute palaeographic counterpart this inscription (according to V.V. Latyshev). The threat of an invasion by the Sciro-Galatians mentioned in the decree was realized around 215 BC (but, not in the middle of the 3rd century BC!). The invasion was accompanied by the destruction, among others, of the Right Bank Chora and burying of the "Borysthenes" treasures.
