325

Year 325 (CCCXXV) 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 (or, less frequently, year 1078 Ab urbe condita). 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.

Millennium:	1st millennium
Centuries:	3rd century 4th century 5th century
Decades:	300s 310s 320s 330s 340s
Years:	322 323 324 325 326 327 328

325 in various calendars

Gregorian calendar	325 CCCXXV
Ab urbe condita	1078
Assyrian calendar	5075
Balinese saka calendar	246–247
Bengali calendar	−268
Berber calendar	1275
Buddhist calendar	869
Burmese calendar	−313
Byzantine calendar	5833–5834
Chinese calendar	甲申年 (Wood Monkey) 3022 or 2815     — to — 乙酉年 (Wood Rooster) 3023 or 2816
Coptic calendar	41–42
Discordian calendar	1491
Ethiopian calendar	317–318
Hebrew calendar	4085–4086
Hindu calendars
- Vikram Samvat	381–382
- Shaka Samvat	246–247
- Kali Yuga	3425–3426
Holocene calendar	10325
Iranian calendar	297 BP – 296 BP
Islamic calendar	306 BH – 305 BH
Javanese calendar	206–207
Julian calendar	325 CCCXXV
Korean calendar	2658
Minguo calendar	1587 before ROC 民前1587年
Nanakshahi calendar	−1143
Seleucid era	636/637 AG
Thai solar calendar	867–868
Tibetan calendar	阳木猴年 (male Wood-Monkey) 451 or 70 or −702     — to — 阴木鸡年 (female Wood-Rooster) 452 or 71 or −701

Constantine the Great summons the Christian Church to Nicaea (mosaic in Hagia Sophia, Istanbul)

Events

By place

Roman Empire

• Emperor Constantine I personally assures the security of the Danube frontier by defeating the Goths, the Vandals, and the Sarmatians.
• Licinius is executed in Thessalonica, on a charge of conspiring and raising troops against Constantine I.
• Gladiatorial combat is outlawed in the Roman Empire.

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

• Constantine the Great, from the Basilica of Maxentius and Constantine, Rome, is started to be made. It is now kept at Palazzo dei Conservatori, Rome.

Religion

• May 20 – First Council of Nicaea: Constantine I summons an ecumenical council of bishops in Nicaea (Turkey). The Nicene Creed, adopted on June 19, declares that the members of the Trinity (the Father, the Son, and the Holy Spirit) 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.
• The Church of the Nativity is built in Bethlehem.

Births

• Ammianus Marcellinus, Roman historian (approximate date)
• Procopius, Roman general and usurper (approximate date)
• Wang Meng (or Jinglüe), Chinese prime minister (d. 375)

Deaths

• October 18 – Ming of Jin, Chinese emperor (b. 299)
• Iamblichus, Syrian philosopher and writer (b. 245)
• Licinius, Roman consul and emperor (executed)
• Li Ju (or Shihui), Chinese general and warlord
• Sextus Martinianus, Roman Emperor (executed)
• Tuoba Heru, Chinese prince of the Tuoba Dai