Year 380 ( CCCLXXX) was a leap year starting on Wednesday 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 as the Year of the Consulship of

Augustus Gaius Julius Caesar Augustus (born Gaius Octavius; 23 September 63 BC – 19 August AD 14), also known as Octavian (), was the founder of the Roman Empire, who reigned as the first Roman emperor from 27 BC until his death in A ...

and

(or, less frequently, year 1133 ''

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 380 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

February 27 Events Pre-1600 * 380 – Edict of Thessalonica: Emperor Theodosius I and his co-emperors Gratian and Valentinian II declare their wish that all Roman citizens convert to Nicene Christianity. * 425 – The University of Constantin ...

–

Edict of Thessalonica An edict is a decree or announcement of a law, often associated with monarchies, but it can be under any official authority. Synonyms include "dictum" and "pronouncement". ''Edict'' derives from the Latin wikt:edictum#Latin, edictum. Notable ed ...

: Theodosius I, with co-emperors Gratian and

Valentinian II Valentinian II (; 37115 May 392) was a Roman emperor in the western part of the Roman Empire between AD 375 and 392. He was at first junior co-ruler of his half-brother, then was sidelined by a usurper, and finally became sole ruler after 388, ...

, declare their wish that all Roman citizens convert to trinitarian

Christianity Christianity is an Abrahamic monotheistic religion, which states that Jesus in Christianity, Jesus is the Son of God (Christianity), Son of God and Resurrection of Jesus, rose from the dead after his Crucifixion of Jesus, crucifixion, whose ...

, in accordance with the patriarchs of

Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...

and

Alexandria Alexandria ( ; ) is the List of cities and towns in Egypt#Largest cities, second largest city in Egypt and the List of coastal settlements of the Mediterranean Sea, largest city on the Mediterranean coast. It lies at the western edge of the Nile ...

, implicitly rejecting the

Arianism Arianism (, ) is a Christology, Christological doctrine which rejects the traditional notion of the Trinity and considers Jesus to be a creation of God, and therefore distinct from God. It is named after its major proponent, Arius (). It is co ...

of the patriarch of

Constantinople Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empire ...

as heretical. * Battle of Thessalonica: The

Goths The Goths were a Germanic people who played a major role in the fall of the Western Roman Empire and the emergence of medieval Europe. They were first reported by Graeco-Roman authors in the 3rd century AD, living north of the Danube in what is ...

under Fritigern defeat a Roman army in Macedonia. Theodosius I retreats to

Thessalonica Thessaloniki (; ), also known as Thessalonica (), Saloniki, Salonika, or Salonica (), is the second-largest city in Greece (with slightly over one million inhabitants in its metropolitan area) and the capital city, capital of the geographic reg ...

and leaves Gratian in control of the

Western Roman Empire In modern historiography, the Western Roman Empire was the western provinces of the Roman Empire, collectively, during any period in which they were administered separately from the eastern provinces by a separate, independent imperial court. ...

. *

's enemies (the

Germans Germans (, ) are the natives or inhabitants of Germany, or sometimes more broadly any people who are of German descent or native speakers of the German language. The Basic Law for the Federal Republic of Germany, constitution of Germany, imple ...

Sarmatians The Sarmatians (; ; Latin: ) were a large confederation of Ancient Iranian peoples, ancient Iranian Eurasian nomads, equestrian nomadic peoples who dominated the Pontic–Caspian steppe, Pontic steppe from about the 5th century BCE to the 4t ...

and

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 ...

) are taken into Imperial service; as a consequence, barbarian leaders begin to play an increasingly active role in the

Roman Empire The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...

. * November 24 – Theodosius I makes his '' adventus'', or formal entry, into Constantinople. * Queen Mavia, with her

Saracen upright 1.5, Late 15th-century German woodcut depicting Saracens ''Saracen'' ( ) was a term used both in Greek and Latin writings between the 5th and 15th centuries to refer to the people who lived in and near what was designated by the Rom ...

forces, defeats 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 ...

in southern

Syria Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to Syria–Turkey border, the north, Iraq to Iraq–Syria border, t ...

. * Emperor

Theodosius I Theodosius I ( ; 11 January 347 – 17 January 395), also known as Theodosius the Great, was Roman emperor from 379 to 395. He won two civil wars and was instrumental in establishing the Nicene Creed as the orthodox doctrine for Nicene C ...

is baptized.

Europe

* The

Visigothic The Visigoths (; ) were a Germanic people united under the rule of a king and living within the Roman Empire during late antiquity. The Visigoths first appeared in the Balkans, as a Roman-allied barbarian military group united under the comman ...

chieftain Fritigern dies after ravaging the

Balkans The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throug ...

; his rival

Athanaric Athanaric or Atanaric (; died 381) was king of several branches of the Thervingian Goths () for at least two decades in the 4th century. Throughout his reign, Athanaric was faced with invasions by the Roman Empire, the Huns and a civil war with C ...

becomes king of the entire Gothic nation.

India

* The annexation of western provinces by

Chandragupta II Chandragupta II (r.c. 375–415), also known by his title Vikramaditya, as well as Chandragupta Vikramaditya, was an emperor of the Gupta Empire. Modern scholars generally identify him with King Chandra of the Iron pillar of Delhi, Delhi iron ...

gives him commerce with

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

and

Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...

Pacific

Easter Island Easter Island (, ; , ) is an island and special territory of Chile in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian Triangle in Oceania. The island is renowned for its nearly 1,000 extant monumental statues, ...

, in the south Pacific Ocean, has been occupied by

Neolithic The Neolithic or New Stone Age (from Ancient Greek, Greek 'new' and 'stone') is an archaeological period, the final division of the Stone Age in Mesopotamia, Asia, Europe and Africa (c. 10,000 BCE to c. 2,000 BCE). It saw the Neolithic Revo ...

seafarers under Hotu Matu'a ("supreme chief"), who about this time begin to fortify the island.

By topic

Arts and sciences

* Important works on mathematics and astronomy are written in

Sanskrit Sanskrit (; stem form ; nominal singular , ,) is a classical language belonging to the Indo-Aryan languages, Indo-Aryan branch of the Indo-European languages. It arose in northwest South Asia after its predecessor languages had Trans-cultural ...

Religion

Ticonius Ticonius, also spelled Tyconius or Tychonius (active 370–390 AD), was a major theologian of 4th-century North African Latin Church, Latin Christianity. He was a Donatist writer whose conception of the City of God influenced St. Augustine of Hippo ...

writes a commentary on the

Bible The Bible is a collection of religious texts that are central to Christianity and Judaism, and esteemed in other Abrahamic religions such as Islam. The Bible is an anthology (a compilation of texts of a variety of forms) originally writt ...

Book of Revelation The Book of Revelation, also known as the Book of the Apocalypse or the Apocalypse of John, is the final book of the New Testament, and therefore the final book of the Bible#Christian Bible, Christian Bible. Written in Greek language, Greek, ...

. * A

cathedral A cathedral is a church (building), church that contains the of a bishop, thus serving as the central church of a diocese, Annual conferences within Methodism, conference, or episcopate. Churches with the function of "cathedral" are usually s ...

is built in Augusta Treverorum. * The Council of Saragossa is held; Spanish and Aquitanian bishops condemn the teachings of

Priscillianism Priscillianism was a Christianity, Christian sect developed in the Roman province of Hispania in the 4th century by Priscillian. It is derived from the Gnosticism, Gnostic doctrines taught by Marcus, an Ægyptus, Egyptian from Memphis, Egypt, Memp ...

Births

* Aelia Eudoxia, empress and wife of Arcadius (approximate date) *

Alexius Alexius is the Latinized form of the given name Alexios (, polytonic , "defender", cf. Alexander), especially common in the Byzantine Empire. The female form is Alexia () and its variants such as Alessia (the masculine form of which is Alessio) ...

, Eastern

saint In Christianity, Christian belief, a saint is a person who is recognized as having an exceptional degree of sanctification in Christianity, holiness, imitation of God, likeness, or closeness to God in Christianity, God. However, the use of the ...

(approximate date) * Eucherius,

bishop A bishop is an ordained member of the clergy who is entrusted with a position of Episcopal polity, authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance and administration of di ...

Lyon Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...

(approximate date) *

Eutyches Eutyches (; c. 375–454) or Eutyches of Constantinople

presbyter Presbyter () is an honorific title for Christian clergy. The word derives from the Greek ''presbyteros'', which means elder or senior, although many in Christian antiquity understood ''presbyteros'' to refer to the bishop functioning as overseer ...

and

archimandrite The title archimandrite (; ), used in Eastern Christianity, originally referred to a superior abbot ('' hegumenos'', , present participle of the verb meaning "to lead") whom a bishop appointed to supervise several "ordinary" abbots and monaste ...

(approximate date) * Hephaestion of Thebes, Egyptian

astrologer Astrology is a range of Divination, divinatory practices, recognized as pseudoscientific since the 18th century, that propose that information about human affairs and terrestrial events may be discerned by studying the apparent positions ...

(approximate date) *

Kālidāsa Kālidāsa (, "Servant of Kali (god), Kali"; 4th–5th century CE) was a Classical Sanskrit author who is often considered ancient India's greatest poet and playwright. His plays and poetry are primarily based on Hindu Puranas and philosophy. ...

Classical Sanskrit Sanskrit (; stem form ; nominal singular , ,) is a classical language belonging to the Indo-Aryan branch of the Indo-European languages. It arose in northwest South Asia after its predecessor languages had diffused there from the northwest ...

writer (approximate date) *

Olympiodorus of Thebes Olympiodorus of Thebes (; born c. 380, fl. c. 412–425 AD) was a Roman historian, poet, philosopher and diplomat of the early fifth century. He produced a ''History'' in twenty-two volumes, written in Greek, dedicated to the Emperor Theodosius II, ...

historical History is the systematic study of the past, focusing primarily on the human past. As an academic discipline, it analyses and interprets evidence to construct narratives about what happened and explain why it happened. Some theorists categ ...

writer (approximate date) * Peter Chrysologus, bishop of Ravenna (approximate date) * Philip of Side,

Christian A Christian () is a person who follows or adheres to Christianity, a Monotheism, monotheistic Abrahamic religion based on the life and teachings of Jesus in Christianity, Jesus Christ. Christians form the largest religious community in the wo ...

church

historian A historian is a person who studies and writes about the past and is regarded as an authority on it. Historians are concerned with the continuous, methodical narrative and research of past events as relating to the human species; as well as the ...

(approximate date) * Socrates of Constantinople, church historian (approximate date)

Deaths

April 10 Events Pre-1600 * 428 – Nestorius becomes the Patriarch of Constantinople. * 837 – Halley's Comet makes its closest approach to Earth at a distance equal to 0.0342 AU (5.1 million kilometres/3.2 million miles). * 140 ...

– James, Azadanus and Abdicius,

Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

priests, martyrs and saints

Date unknown

* Fritigern, king of the

Visigoths The Visigoths (; ) were a Germanic people united under the rule of a king and living within the Roman Empire during late antiquity. The Visigoths first appeared in the Balkans, as a Roman-allied Barbarian kingdoms, barbarian military group unite ...

* Samudragupta, ruler of the

Gupta Empire The Gupta Empire was an Indian empire during the classical period of the Indian subcontinent which existed from the mid 3rd century to mid 6th century CE. At its zenith, the dynasty ruled over an empire that spanned much of the northern Indian ...

* Wang Fahui, empress of the Jin dynasty (b.

360 360 may refer to: * 360 (number) * 360 AD, a year * 360 BC, a year * 360 degrees, a turn Businesses and organizations * 360 Architecture, an American architectural design firm * Ngong Ping 360, a tourism project in Lantau Island, Hong Kong ...

)

References

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