325
Year 325 was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Proculus and Paulinus. The denomination 325 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Events
By place
Roman Empire
- German and Sarmatian campaigns of Constantine: Emperor Constantine I personally assures the security of the Danube frontier by defeating the Goths, the Vandals and the Sarmatians.
- Constantine has deposed Emperors Licinius and Martinian executed in Thessalonica and Cappadocia respectively for conspiring and raising troops against him.
- Constantine forbids criminals being forced to fight to the death as gladiators.
China
- April 1 - Crown Prince Cheng of Jin, age 4, succeeds his father Ming of Jin as emperor of the Eastern Jin dynasty. During his reign, he is largely advised by regents, his uncle Yu Liang and high-level officials.
By topic
Art
- The Colossus of Constantine in the Basilica of Maxentius and Constantine, Rome, is perhaps remodelled at about this date..
Religion
- May 20 - First Council of Nicaea: Constantine summons an ecumenical council of bishops in Nicaea. The Nicene Creed, adopted on June 19, declares that the members of the Trinity are equal. The council decides that Easter is celebrated on the first Sunday after the first full moon after the vernal equinox. Arius is exiled to Illyria; his works are confiscated and consigned to the flames.