ARIUS âr’ ĭ əs. Arius (c. 250-336), the ascetic pastor of Baucalis Church in Alexandria, preached and propagated with words set to popular tunes that Christ was a created being with a different substance than God. The ensuing dispute with Bishop Alexander led the Emperor Constantine to convene the ecumenical council of Nicaea in 325. Athanasius’ view that Christ was eternal and of the same substance as God was embodied by the council in the forerunner of the present.
International Standard Bible Encyclopedia (1915)
a-ri’-us, a’-ri-us (Ares): The reading of the Vulgate (Jerome’s Latin Bible, 390-405 A.D.) adopted in the Lacedaemonians.(British and American) for the former reading Areus and Areios of Josephus. A king of Sparta (309-265 BC) who wrote the letter to Onias, the high priest, given in 1 Macc 12:7,20-23. There were two Spartan kings named Arius, and three high priests named Onias. Chronology requires the letter mentioned to have been written by Arius I to Onias I, most probably in the interval between 309 and 300 BC. See