History of the First Council of Nice Author: Dean Dudley - The author of the History of the First Council of Nice, Dean Dudley, searched the annals of history using the most scholarly and trusted sources available to reveal exactly how Christianity, as we know it today, was "railroaded" into existence. This was the first major council in Christendom, taking place in the year A.D. 325. The major controlling force behind this convention was the Roman Emperor Constantine.