378

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This article is about the year 378. For the number, see 378 (number).
Millennium: 1st millennium
Centuries: 3rd century4th century5th century
Decades: 340s  350s  360s  – 370s –  380s  390s  400s
Years: 375 376 377378379 380 381
378 by topic
Politics
State leadersSovereign states
Birth and death categories
BirthsDeaths
Establishment and disestablishment categories
EstablishmentsDisestablishments
378 in other calendars
Gregorian calendar 378
CCCLXXVIII
Ab urbe condita 1131
Armenian calendar N/A
Assyrian calendar 5128
Bahá'í calendar −1466 – −1465
Bengali calendar −215
Berber calendar 1328
English Regnal year N/A
Buddhist calendar 922
Burmese calendar −260
Byzantine calendar 5886–5887
Chinese calendar 丁丑(Fire Ox)
3074 or 3014
    — to —
戊寅年 (Earth Tiger)
3075 or 3015
Coptic calendar 94–95
Discordian calendar 1544
Ethiopian calendar 370–371
Hebrew calendar 4138–4139
Hindu calendars
 - Vikram Samvat 434–435
 - Shaka Samvat 300–301
 - Kali Yuga 3479–3480
Holocene calendar 10378
Igbo calendar −622 – −621
Iranian calendar 244 BP – 243 BP
Islamic calendar 252 BH – 251 BH
Japanese calendar N/A
Juche calendar N/A
Julian calendar 378
CCCLXXVIII
Korean calendar 2711
Minguo calendar 1534 before ROC
民前1534年
Thai solar calendar 921

Year 378 (CCCLXXVIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Valens and Augustus (or, less frequently, year 1131 Ab urbe condita). The denomination 378 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[edit]

By place[edit]

Roman Empire[edit]

  • Spring – Emperor Valens returns to Constantinople and mobilises an army (40,000 men). He appoints Sebastian, newly arrived from Italy, as magister militum to reorganize the Roman armies in Thrace.
  • February – The Lentienses (part of the Alamanni) cross the frozen Rhine and raid the countryside. They are driven back by Roman auxilia palatina (Celtae and Petulantes), who defend the western frontier.
  • May – Battle of Argentovaria: Emperor Gratian is forced to recall his army he has sent East. The Lentienses are defeated by Mallobaudes near Colmar (France). Gratian gains the title Alemannicus Maximus.
  • Gothic War: Valens sends Sebastian with a body of picked troops (2,000 men) to Thrace and renews the guerilla war against the Goths. He chase down small groups of Gothic raiders around Adrianople.
  • Fritigern concentrates his army at Cabyle (Bulgaria). The Goths are mainly centred in the river valleys south of the Balkan Mountains, around the towns of Beroea, Cabyle and Dibaltum.
  • July – Frigeridus, Roman general, fortifies the Succi (Ihtiman) Pass to prevent the "barbarians" breaking out to the north-west (Pannonia).
  • Gratian sets out from Lauriacum (Austria) with a body of light armed troops. His force is small enough to travel by boat down the Danube. He halts for four days at Sirmium (Serbia) suffering from fever.
  • August – Gratian continues down the Danube to the "Camp of Mars" (frontier fortress near modern Niš) where he loses several men in an ambush by a band of Alans.
  • Fritigern strikes south from Cabyle, following the Tundzha River towards Adrianople and tries to get behind the supply lines to Constantinople.
  • Roman reconnaissance detects the Goths. Valens already west of Adrianople, returns back and established a fortified camp outside the city.
  • The Goths with their wagons and families vulnerable to attack, withdraw back to the north. Roman scouts fail to detect the Greuthungi cavalry foraging further up the Tundzha valley.
  • Fritigern sends a Christian priest to the Roman camp with an offer of terms and a letter for Valens. The peace overtures are rejected.
  • August 9Battle of Adrianople: A large Roman army is defeated by the Visigoths. Valens is killed along with two-thirds of his army.
  • The Goths attack Adrianople; they attempt to scale the city walls with ladders but are repelled by the defenders who drop lumps of masonry.
  • The Goths supported by the Huns move on to Constantinople. Their progress is checked by the Saracens, recruited from Arab tribes who control the eastern fringes of the empire.
  • October – The Greuthungi, faced with food shortages, split off and move west into Pannonia. Followed by their families they raid villages and farmland.
  • Gratian recalls his military commander Flavius Theodosius, age 31, son of the executed general Theodosius the Elder and appoints him co-emperor of the Eastern Roman Empire.

Mesoamerica[edit]

By topic[edit]

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