Year 317 ( CCCXVII) was a

common year starting on Tuesday A common year starting on Tuesday is any non-leap year (i.e. a year with 365 days) that begins on Tuesday, 1 January, and ends on Tuesday, 31 December. Its dominical letter hence is F. The most recent year of such kind was 2019 and the next one ...

(link will display the full calendar) of the

Julian calendar The Julian calendar, proposed by Roman consul Julius Caesar in 46 BC, was a reform of the Roman calendar. It took effect on , by edict. It was designed with the aid of Greek mathematicians and astronomers such as Sosigenes of Alexandri ...

. At the time, it was known as the Year of the Consulship of Gallicanus and Bassus (or, less frequently, year 1070 ''

Ab urbe condita ''Ab urbe condita'' ( 'from the founding of the City'), or ''anno urbis conditae'' (; 'in the year since the city's founding'), abbreviated as AUC or AVC, expresses a date in years since 753 BC, the traditional founding of Rome. It is an ex ...

''). The denomination 317 for this year has been used since the early medieval period, when the

Anno Domini The terms (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars. The term is Medieval Latin and means 'in the year of the Lord', but is often presented using "our Lord" instead of "the Lord" ...

calendar era A calendar era is the period of time elapsed since one '' epoch'' of a calendar and, if it exists, before the next one. For example, it is the year as per the Gregorian calendar, which numbers its years in the Western Christian era (the Coptic ...

became the prevalent method in Europe for naming years.

Events

By place

Roman Empire

March 1 Events Pre-1600 * 509 BC – Publius Valerius Publicola celebrates the first triumph of the Roman Republic after his victory over the deposed king Lucius Tarquinius Superbus at the Battle of Silva Arsia. * 293 – Emperor Dioclet ...

– Emperor

Constantine the Great Constantine I ( , ; la, Flavius Valerius Constantinus, ; ; 27 February 22 May 337), also known as Constantine the Great, was Roman emperor from AD 306 to 337, the first one to convert to Christianity. Born in Naissus, Dacia Mediterran ...

and co-emperor

Licinius Valerius Licinianus Licinius (c. 265 – 325) was Roman emperor from 308 to 324. For most of his reign he was the colleague and rival of Constantine I, with whom he co-authored the Edict of Milan, AD 313, that granted official toleration to C ...

elevate their sons

Crispus Flavius Julius Crispus (; 300 – 326) was the eldest son of the Roman emperor Constantine I, as well as his junior colleague ( ''caesar'') from March 317 until his execution by his father in 326. The grandson of the ''augustus'' Constantius ...

, Constantine II (being still a

baby An infant or baby is the very young offspring of human beings. ''Infant'' (from the Latin word ''infans'', meaning 'unable to speak' or 'speechless') is a formal or specialised synonym for the common term ''baby''. The terms may also be used to ...

) and

Licinius II Licinius II, also called Licinius Junior or Licinius Caesar (Latin: ''Valerius Licinianus Licinius''; – ), was the son of the Roman emperor Licinius I. He held the imperial rank of '' caesar'' between March 317 and September 324, while his fat ...

to '' Caesars''. After this arrangement Constantine rules the dioceses

Pannonia Pannonia (, ) was a province of the Roman Empire bounded on the north and east by the Danube, coterminous westward with Noricum and upper Italy, and southward with Dalmatia and upper Moesia. Pannonia was located in the territory that is now west ...

and Macedonia, and establishes his residence at

Sirmium Sirmium was a city in the Roman province of Pannonia, located on the Sava river, on the site of modern Sremska Mitrovica in the Vojvodina autonomous provice of Serbia. First mentioned in the 4th century BC and originally inhabited by Illyria ...

, from where he prepares a campaign against the

Goths The Goths ( got, 𐌲𐌿𐍄𐌸𐌹𐌿𐌳𐌰, translit=''Gutþiuda''; la, Gothi, grc-gre, Γότθοι, Gótthoi) were a Germanic people who played a major role in the fall of the Western Roman Empire and the emergence of medieval Euro ...

and

Sarmatians The Sarmatians (; grc, Σαρμαται, Sarmatai; Latin: ) were a large confederation of ancient Eastern Iranian equestrian nomadic peoples of classical antiquity who dominated the Pontic steppe from about the 3rd century BC to the 4th cen ...

. * Licinius recognizes Constantine I as senior emperor and executes

Valerius Valens Aurelius Valerius Valens (died 317), rarely Valens I, was briefly Roman emperor from late 316 to early 317. He was proclaimed emperor by Licinius, emperor of the East, during his war against Constantine I, emperor of the West. Biography In ...

Asia

Sixteen Kingdoms The Sixteen Kingdoms (), less commonly the Sixteen States, was a chaotic period in Chinese history from AD 304 to 439 when northern China fragmented into a series of short-lived dynastic states. The majority of these states were founded by ...

: Jingwen (later Yuan of Jin) flees with remnants of the Jin court and noble families to the south. He succeeds Emperor Min of Jin as first ruler of the

Eastern Jin Dynasty Eastern may refer to: Transportation *China Eastern Airlines, a current Chinese airline based in Shanghai *Eastern Air, former name of Zambia Skyways *Eastern Air Lines, a defunct American airline that operated from 1926 to 1991 *Eastern Air Li ...

and decides to make

Jiankang Jiankang (), or Jianye (), as it was originally called, was capital city of the Eastern Wu (229–265 and 266–280 CE), the Jin dynasty (317–420 CE) and the Southern Dynasties (420–552), including the Chen dynasty (557–589 CE). Its wal ...

(modern

Nanjing Nanjing (; , Mandarin pronunciation: ), Postal Map Romanization, alternately romanized as Nanking, is the capital of Jiangsu Provinces of China, province of the China, People's Republic of China. It is a sub-provincial city, a megacity, and t ...

) his new capital. * The earliest historically verified reference to tea is recorded, although the Chinese have been drinking the

beverage A drink or beverage is a liquid intended for human consumption. In addition to their basic function of satisfying thirst, drinks play important roles in human culture. Common types of drinks include plain drinking water, milk, juice, smoo ...

for centuries.

Births

August 7 Events Pre-1600 * 461 – Roman Emperor Majorian is beheaded near the river Iria in north-west Italy following his arrest and deposition by the ''magister militum'' Ricimer. * 626 – The Avar and Slav armies leave the siege of Co ...

–

Constantius II Constantius II (Latin: ''Flavius Julius Constantius''; grc-gre, Κωνστάντιος; 7 August 317 – 3 November 361) was Roman emperor from 337 to 361. His reign saw constant warfare on the borders against the Sasanian Empire and Germanic ...

, Roman emperor (d. 361) * Fú Jiàn, Chinese emperor of the

Former Qin The Former Qin, also called Fu Qin (苻秦), (351–394) was a dynastic state of the Sixteen Kingdoms in Chinese history ruled by the Di ethnicity. Founded by Fu Jian (posthumously Emperor Jingming) who originally served under the Later ...

(d. 355) *

Junius Bassus Theotecnius Junius Bassus Theotecnius (June 317 – 25 August 359) was an ancient Roman politician. The son of the praetorian prefect Junius Annius Bassus, he was ''vir clarissimus'' and ''vicarius'' of Rome as well as ''praefectus urbi'' from 25 March to ...

, Roman politician (d.

359 __NOTOC__ Year 359 ( CCCLIX) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Eusebius and Hypatius (or, less frequently, year 1112 ' ...

) *

Themistius Themistius ( grc-gre, Θεμίστιος ; 317 – c. 388 AD), nicknamed Euphrades, (eloquent), was a statesman, rhetorician, and philosopher. He flourished in the reigns of Constantius II, Julian, Jovian, Valens, Gratian, and Theodosius I; ...

, Byzantine statesman and philosopher

Deaths

, Roman emperor

References

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