The 13th General Assembly of the Institute (Constitutional) has taken place with particular success at the accommodating premises of Evgenides’ Foundation (Lecture Hall of the Athens Planetarium). During the Assembly the President presented the new revised and ameliorated Statute and the new Board to the new Principal Fellows of the Institute. Everything has been unanimously approved. Afterwards, the invited lecture of the Board Member Dr Themis Dallas was given with great success, presenting the Isis Sanctuaries in Hellas and their astronomical orientation. The Director of the Planetarium Dr Manos Kitsonas and the Institute’s President Dr Dr Alicia Maravelia have both prologued the speaker.