Tomar Grigorian (Gregorian Calendar).
Tomar Grigorian Rome, Dominici Baze printing, 1584 This is the New chronology – Gregorian calendar, that was confirmed by Gregory XIII Pope. It was translated from Latin to Armenian by Sultanshah, Hovhannes Tersnetsi and his son Khachatur, and was printed. They also printed the Pope’s kondakion about the new system of chronology with the explanations. …