Converting a christian date in arabic and vice versa
Address given in honor of Dimitrios Aiginitis for his forty years as Director of the Observatory of Athens
Archbishop Chrysostomos I Athinon
Chrisostomos Papadopoulos studied in Iokeimios School of Constantinople from 1884 to 1887. He continued in the Theological School of Jerusalem, in the Evangelical School of Smyrna and in the Theological Schools of Athens, Kiev and St. Petersburgh, from which he obtained his PhD.
He taught in the School of Jerusalem, in the Rizareios School of Athens and later in the University of Athens, where he held the Chair of Ecclesiastical History. He was elected a member of the Academy in 1926 anf Archbishop of Athens in 1923.
On the subject of the calendar and the creation of a civic solar calendar
On the subject of the calendar: A treatise compiled from various sources
Rome and the Festal Epistles
On the subject of the calendar
The article discusses the history of the various calendars and mathematically describes the disadvantages of each. There is a special mention of the calculation of Easter. Finally, the author describes a way to calculate the day that corresponds to any date.
Michael M. Sofianos
One of the first students and graduates of the Greek Military Academy in 1831. He joined the artillery Corps, in which he served for forty four years, attaing the rank of Major General. He also studied abroad and taught Higher Mathematics and Fortifications in the Greek Military Academy.