Life of Constantine

But our emperor began his reign at the time of life at which the Macedonian died, yet doubled the length of his life, and trebled the length of his reign. And instructing his army in the mild and sober precepts of godliness, he carried his arms as far as the Britons, and the nations that dwell in the very bosom of the Western ocean. He subdued likewise all Scythia, though situated in the remotest North, and divided into numberless diverse and barbarous tribes. He even pushed his conquests to the Blemmyans and Ethiopians, on the very confines of the South; nor did he think the acquisition of the Eastern nations unworthy his care.

In short, diffusing the effulgence of his holy light to the ends of the whole world, even to the most distant Indians, the nations dwelling on the extreme circumference of the inhabited earth, he received the submission of all the rulers, governors, and satraps of barbarous nations, who cheerfully welcomed and saluted him, sending embassies and presents, and setting the highest value on his acquaintance and friendship; insomuch that they honored him with pictures and statues in their respective countries, and Constantine alone of all emperors was acknowledged and celebrated by all. Notwithstanding, even among these distant nations, he proclaimed the name of his God in his royal edicts with all boldness.