Actiaca Aera was a computation of time from the battle of Actium.
The number of eggs laid is enormous, one computation putting it at twenty thousand.
Much labour was bestowed by him upon facilitating the computation of the movements of the asteroids.
According to the Alexandrian computation, this was the year 5787 of the world, and 287 of the Incarnation; but on this occasion ten years were omitted, and that year was thenceforth called the year 5777 of the world, and 277 of the Incarnation.
It is not known for what reason the alteration was made; but it is conjectured that it was for the purpose of causing a newfrevolution of the cycle of nineteen years (which was introduced into the ecclesiastical computation about this time by Anatolius, bishop of Hierapolis) to begin with the first year of the reign of Diocletian.