__NOTOC__ Year 363 ( CCCLXIII) was a

common year starting on Wednesday A common year starting on Wednesday is any non-leap year (a year with 365 days) that begins on Wednesday, January 1, and ends on Wednesday, December 31. Its dominical letter hence is E. The current year, 2025, is a common year starting on Wedne ...

of the

Julian calendar The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts ...

. At the time, it was known in Rome as the Year of the Consulship of Iulianus and Sallustius (or, less frequently, year 1116 ''

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

''). The denomination 363 for this year has been used since the early medieval period, when the

Anno Domini The terms (AD) and before Christ (BC) are used when designating years in the Gregorian calendar, Gregorian and Julian calendar, Julian calendars. The term is Medieval Latin and means "in the year of the Lord" but is often presented using "o ...

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, the current year is numbered in the Gregorian calendar, which numbers its years in the Western Christian era ...

became the prevalent method in Europe for naming years.

Events

By place

Roman Empire

March 5 Events Pre-1600 * 363 – Roman emperor Julian leaves Antioch with an army of 90,000 to attack the Sasanian Empire, in a campaign which would bring about his own death. * 1046 – Nasir Khusraw begins the seven-year Middle Easte ...

– Emperor Julian departs from

Antioch Antioch on the Orontes (; , ) "Antioch on Daphne"; or "Antioch the Great"; ; ; ; ; ; ; . was a Hellenistic Greek city founded by Seleucus I Nicator in 300 BC. One of the most important Greek cities of the Hellenistic period, it served as ...

with his army (90,000 men) and heads north towards the

Euphrates The Euphrates ( ; see #Etymology, below) is the longest and one of the most historically important rivers of West Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia (). Originati ...

. En route he creates a diversion and sends a force of 30,000 soldiers under his cousin

Procopius Procopius of Caesarea (; ''Prokópios ho Kaisareús''; ; – 565) was a prominent Late antiquity, late antique Byzantine Greeks, Greek scholar and historian from Caesarea Maritima. Accompanying the Roman general Belisarius in Justinian I, Empe ...

Armenia Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...

. *

April April is the fourth month of the year in the Gregorian and Julian calendars. Its length is 30 days. April is commonly associated with the season of spring in the Northern Hemisphere, and autumn in the Southern Hemisphere, where it is the ...

– Julian crosses the Euphrates near

Hierapolis Hierapolis (; , lit. "Holy City") was a Hellenistic Greek city built on the site of a Phrygian cult center of the Anatolian mother goddess Cybele, in Phrygia in southwestern Anatolia, Turkey. It was famous for its hot springs, its high qualit ...

, using 50 pontoon ships, and moves eastwards to Carrhae. He destroys Perisapora and overruns Persian forts along the desert frontier (''

Limes Arabicus The ''Limes Arabicus'' was a desert frontier of the Roman Empire, running north from its start in the province of Arabia Petraea. It ran northeast from the Gulf of Aqaba for about at its greatest extent, reaching northern Syria and forming part ...

''). *

May 29 Events Pre-1600 * 363 – The Roman emperor Julian defeats the Sasanian army in the Battle of Ctesiphon, under the walls of the Sasanian capital, but is unable to take the city. * 1108 – Battle of Uclés: Almoravid troops unde ...

– Battle of Ctesiphon: Julian reaches the vicinity of the strongly fortified capital

Ctesiphon Ctesiphon ( ; , ''Tyspwn'' or ''Tysfwn''; ; , ; Thomas A. Carlson et al., “Ctesiphon — ܩܛܝܣܦܘܢ ” in The Syriac Gazetteer last modified July 28, 2014, http://syriaca.org/place/58.) was an ancient city in modern Iraq, on the eastern ba ...

. King

Shapur II Shapur II ( , 309–379), also known as Shapur the Great, was the tenth King of Kings (List of monarchs of the Sasanian Empire, Shahanshah) of Sasanian Iran. He took the title at birth and held it until his death at age 70, making him the List ...

in charge of a large Persian army adopts a

scorched earth A scorched-earth policy is a military strategy of destroying everything that allows an enemy military force to be able to fight a war, including the deprivation and destruction of water, food, humans, animals, plants and any kind of tools and i ...

policy, leaving the Romans desperately short of supplies. *

June 16 Events Pre-1600 * 632 – Yazdegerd III ascends the throne as king (''shah'') of the Persian Empire. He becomes the last ruler of the Sasanian dynasty (modern Iran). *1407 – Ming–Hồ War: Retired King Hồ Quý Ly and his son K ...

– The

Roman army The Roman army () served ancient Rome and the Roman people, enduring through the Roman Kingdom (753–509 BC), the Roman Republic (509–27 BC), and the Roman Empire (27 BC–AD 1453), including the Western Roman Empire (collapsed Fall of the W ...

starts its retreat northward to

Corduene Gordyene or Corduene (; ; ) was an ancient historical region, located south of Lake Van, present-day eastern Turkey. According to the ''1911 Encyclopædia Britannica'', Gordyene is the ancient name of the region of ''Bohtan'', now Şırnak Prov ...

(Armenia). Julian marches back up the

Tigris The Tigris ( ; see #Etymology, below) is the eastern of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian Desert, Syrian and Arabia ...

and burns his fleet of supply ships. During the withdrawal Julian's forces suffer several attacks from the

Persia Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...

ns. *

June 26 Events Pre-1600 *4 AD, 4 – Augustus adopts Tiberius. * 221 – Roman emperor Elagabalus adopts his cousin Alexander Severus as his heir and receives the title of Caesar (title), Caesar. * 363 – Roman emperor Julian (emperor), J ...

–

Battle of Samarra The Battle of Samarra took place in June 363, during the invasion of the Sasanian Empire by the Roman emperor Julian. After marching his army to the gates of Ctesiphon and failing to take the city, Julian, realizing his army was low on provisi ...

: Julian is mortally wounded in a skirmish and dies from a wound received during the fighting near

Samarra Samarra (, ') is a city in Iraq. It stands on the east bank of the Tigris in the Saladin Governorate, north of Baghdad. The modern city of Samarra was founded in 836 by the Abbasid caliph al-Mu'tasim as a new administrative capital and mi ...

(

Iraq Iraq, officially the Republic of Iraq, is a country in West Asia. It is bordered by Saudi Arabia to Iraq–Saudi Arabia border, the south, Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq border, the east, the Persian Gulf and ...

Jovian Jovian is the adjectival form of Jupiter and may refer to: * Jovian (emperor) (Flavius Iovianus Augustus), Roman emperor (363–364 AD) * Jovians and Herculians, Roman imperial guard corps * Jovian (lemur), a Coquerel's sifaka known for ''Zobooma ...

, general of the Guard, succeeds him and is proclaimed

Emperor The word ''emperor'' (from , via ) can mean the male ruler of an empire. ''Empress'', the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules ...

by the troops. * Emperor Jovian negotiates a disastrous peace with

, surrendering four of the five

Roman province The Roman provinces (, pl. ) were the administrative regions of Ancient Rome outside Roman Italy that were controlled by the Romans under the Roman Republic and later the Roman Empire. Each province was ruled by a Roman appointed as Roman g ...

s gained by Caesar Galerius in

298 Year 298 ( CCXCVIII) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Faustus and Gallus (or, less frequently, year 1051 ''Ab urbe condita''). The denomination 298 for thi ...

, and the cities

Nisibis Nusaybin () is a municipality and Districts of Turkey, district of Mardin Province, Turkey. Its area is 1,079 km2, and its population is 115,586 (2022). The city is populated by Kurds of different tribal affiliation. Nusaybin is separated ...

and Singara (

Mesopotamia Mesopotamia is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent. Today, Mesopotamia is known as present-day Iraq and forms the eastern geographic boundary of ...

Europe

* The

Huns The Huns were a nomadic people who lived in Central Asia, the Caucasus, and Eastern Europe between the 4th and 6th centuries AD. According to European tradition, they were first reported living east of the Volga River, in an area that was par ...

first appear in Europe and reach the

Caspian Sea The Caspian Sea is the world's largest inland body of water, described as the List of lakes by area, world's largest lake and usually referred to as a full-fledged sea. An endorheic basin, it lies between Europe and Asia: east of the Caucasus, ...

Middle East

May 18 Events Pre-1600 * 332 – Emperor Constantine the Great announces free distributions of food to the citizens in Constantinople. * 872 – Louis II of Italy is crowned for the second time as Holy Roman Emperor at Rome, at the age of 47 ...

– 19 –

Galilee earthquake of 363 The Galilee earthquake of 363 was a pair of severe earthquakes that shook the Galilee and nearby regions on May 18 and 19. The maximum perceived intensity for the events was estimated to be X (''Very destructive'') on the European macroseismic sc ...

Petra Petra (; "Rock"), originally known to its inhabitants as Raqmu (Nabataean Aramaic, Nabataean: or , *''Raqēmō''), is an ancient city and archaeological site in southern Jordan. Famous for its rock-cut architecture and water conduit systems, P ...

, capital of the

Nabataeans The Nabataeans or Nabateans (; Nabataean Aramaic: , , vocalized as ) were an ancient Arabs, Arab people who inhabited northern Arabian Peninsula, Arabia and the southern Levant. Their settlements—most prominently the assumed capital city o ...

(in modern-day Syria), is seriously damaged. * 363 Arsakawan earthquake. It affected the cities of Arsakawan (modern

Doğubayazıt Doğubayazıt (; or , ) is a town of Ağrı Province of Turkey, near the Iran–Turkey border, border with Iran. Its elevation is 1625 m. It is the seat of Doğubayazıt District. History For most of the periods described here, Doğubay ...

) and Salat (modern Sisian).Guidoboni, Traina, 1995, p. 113.

By topic

Astronomy

April 20 Events Pre-1600 * 1303 – The Sapienza University of Rome is instituted by a bull of Pope Boniface VIII. 1601–1900 * 1653 – Oliver Cromwell dissolves England's Rump Parliament. * 1657 – English Admiral Robert Blake destroy ...

– The planet

Venus Venus is the second planet from the Sun. It is often called Earth's "twin" or "sister" planet for having almost the same size and mass, and the closest orbit to Earth's. While both are rocky planets, Venus has an atmosphere much thicker ...

occults the planet

Jupiter Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a Jupiter mass, mass more than 2.5 times that of all the other planets in the Solar System combined a ...

Religion

* The

Council of Laodicea The Council of Laodicea was a regional Christian synod of approximately thirty clerics from Asia Minor which assembled about 363–364 in Laodicea, Phrygia Pacatiana. Historical context The council took place soon after the conclusion of the wa ...

, which deals with constricting the conduct of church members, is held. The major

canon Canon or Canons may refer to: Arts and entertainment * Canon (fiction), the material accepted as officially written by an author or an ascribed author * Literary canon, an accepted body of works considered as high culture ** Western canon, th ...

approved by this council is Canon 29, which prohibits resting on the Sabbath (Saturday), restricting Christians to honoring the

Lord Lord is an appellation for a person or deity who has authority, control, or power (social and political), power over others, acting as a master, chief, or ruler. The appellation can also denote certain persons who hold a title of the Peerage o ...

Sunday Sunday (Latin: ''dies solis'' meaning "day of the sun") is the day of the week between Saturday and Monday. Sunday is a Christian sabbath, day of rest in most Western countries and a part of the Workweek and weekend, weekend. In some Middle Ea ...

. *

Mar Mattai Monastery Dayro d-Mor Mattai (; ; ''The Monastery of St. Matthew'' or ''Dayro d-Mor Mattai'') is a Syriac Orthodox Church monastery on Mount Alfaf in northern Iraq. Located 20 kilometers northeast of the city of Mosul, it is recognized as one of the oldest ...

is founded on Mount Alfaf.

Births

Sulpicius Severus Sulpicius Severus (; c. 363 – c. 425) was a Christian writer and native of Aquitania in modern-day France. He is known for his chronicle of sacred history, as well as his biography of Saint Martin of Tours. Life Almost all that we know of Se ...

, Christian writer (approximate date) * Wu Di (or Liu Yu), Chinese emperor of

Liu Song Song, known as Liu Song (), Former Song (前宋) or Song of (the) Southern dynasties (南朝宋) in historiography, was an Dynasties of China, imperial dynasty of China and the first of the four Northern and Southern dynasties#Southern dynasti ...

(d. 422)

Deaths

–

Julian the Apostate Julian (; ; 331 – 26 June 363) was the Caesar of the West from 355 to 360 and Roman emperor from 361 to 363, as well as a notable philosopher and author in Greek. His rejection of Christianity, and his promotion of Neoplatonic Hellenism ...

, Roman emperor (b.

331 __NOTOC__ Year 331 ( CCCXXXI) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Bassus and Ablabius (or, less frequently, year 1084 ''Ab urbe condita''). The denomination ...

) * Aemilia Hilaria, Galo-Roman physician and writer (b.

300 __NOTOC__ Year 300 ( CCC) was a leap year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Valerius (or, less frequently, year 1053 ''Ab urbe condita''). The denomination 300 ...

) * Lucillianus, Roman commander (''

magister equitum The , in English Master of the Horse or Master of the Cavalry, was a Roman magistrate appointed as lieutenant to a dictator. His nominal function was to serve as commander of the Roman cavalry in time of war, but just as a dictator could be n ...

'') * Zhang Xuanjing, Chinese ruler of

Former Liang The Former Liang (; 301–376) was a dynastic state, and one of the Sixteen Kingdoms, in Chinese history. It was founded by Zhang Shi of the Han Chinese Zhang family. Its territories included present-day Gansu and parts of Ningxia, Shaanxi, Qing ...

(b.

350 __NOTOC__ Year 350 ( CCCL) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Sergius and Nigrinianus (or, less frequently, year 1103 ''Ab urbe condita''). The denomination 3 ...

) * Zhou (or Cheng), Chinese

concubine Concubinage is an interpersonal relationship, interpersonal and Intimate relationship, sexual relationship between two people in which the couple does not want to, or cannot, enter into a full marriage. Concubinage and marriage are often regarde ...

of Jin Chengdi

References

Sources

* {{DEFAULTSORT:363