315
Calendar year

Year 315 (CCCXV) was a common year starting on Saturday of the Julian calendar. At the time, it was known in Rome 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.
01Events
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 reestablishes 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 dedicates 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-day Trier).
By topic
Religion

02Births
- Flavius Hannibalianus, ruler of Armenia and Pontus (d. 337)
- Hilary of Poitiers, Christian bishop and Doctor of the Church
- Himerius, Greek sophist and rhetorician (approximate date)
- Vettius Agorius Praetextatus, Roman politician (d. 384)

03Deaths
- September 14 , Maternus of Cologne, bishop of Trier
- Du Tao (or Jingwen), Chinese general and rebel leader
- Galeria Valeria, Roman empress and wife of Galerius
- Prisca, Roman empress and wife of Diocletian (b. 247)
- Valerius of Saragossa, Christian bishop and martyr
Sources and credits
This article is adapted from the Wikipedia article “315”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- RomeConstantine'sArch03.jpg by User:Alexander Z., CC BY-SA 3.0
- San Valero, Francisco de Goya.jpg by Francisco Goya, Public domain
- Maternus von Koeln, Egbert Psalter.jpg by AnonymousUnknown author, Public domain
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