315

This article is about the year 315. For the number, see 315 (number).

Millennium:	1st millennium
Centuries:	3rd century – 4th century – 5th century
Decades:	280s  290s  300s  – 310s –  320s  330s  340s
Years:	312 313 314 – 315 – 316 317 318

315 by topic

Politics

State leaders – Sovereign states

Birth and death categories

Births – Deaths

Establishment and disestablishment categories

Establishments – Disestablishments

315 in other calendars

Gregorian calendar	315 CCCXV
Ab urbe condita	1068
Assyrian calendar	5065
Bengali calendar	−278
Berber calendar	1265
Buddhist calendar	859
Burmese calendar	−323
Byzantine calendar	5823–5824
Chinese calendar	甲戌年 (Wood Dog) 3011 or 2951     — to — 乙亥年 (Wood Pig) 3012 or 2952
Coptic calendar	31–32
Discordian calendar	1481
Ethiopian calendar	307–308
Hebrew calendar	4075–4076
Hindu calendars
- Vikram Samvat	371–372
- Shaka Samvat	237–238
- Kali Yuga	3416–3417
Holocene calendar	10315
Iranian calendar	307 BP – 306 BP
Islamic calendar	316 BH – 315 BH
Julian calendar	315 CCCXV
Korean calendar	2648
Minguo calendar	1597 before ROC 民前1597年
Seleucid era	626/627 AG
Thai solar calendar	857–858

Arch of Constantine (Rome)

Year 315 (CCCXV) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantinus and Licinianus (or, less frequently, year 1068 Ab urbe condita). The denomination 315 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

• Constantine the Great and co-emperor Licinius battle the Sarmates, the Goths and the Carpians along the Danube. Constantine leads a punitive expedition into Dacia and reestablished the Roman fortifications of the frontier.
• July 25 – The Arch of Constantine is completed near the Colosseum at Rome to commemorate Constantine's victory over Maxentius at the Milvian Bridge. As part of the ceremony Constantine is expected to make a sacrifice to Rome's traditional gods, but he refuses to do so.
• Constantine I dedicated the Basilica of Maxentius and installs a large statue of himself inside it.
• Crucifixion is abolished as punishment in the Roman Empire.
• A program of assistance to the poor is established in the Roman Empire.
• Immense baths are constructed in Augusta Treverorum (modern Trier).

By topic

Religion

• Eusebius becomes bishop of Caesarea (approximate date).
• The lamb becomes the symbol of Jesus in Christian art.

Births

• Cyril of Jerusalem, bishop and theologian (approximate date)
• Flavius Hannibalianus, king of Armenia and Pontus (d. 337)
• Himerius, Greek sophist and rhetorician (d. 386)
• Vettius Agorius Praetextatus, Roman politician (d. 384)

Deaths

• Saint Valerius, bishop of Zaragoza (martyred)