378

This article is about the year 378. For the number, see378 (number).

Millennium:	1st millennium
Centuries:	3rd century 4th century 5th century
Decades:	350s 360s 370s 380s 390s
Years:	375 376 377 378 379 380 381

378 in variouscalendars

Gregorian calendar	378 CCCLXXVIII
Ab urbe condita	1131
Assyrian calendar	5128
Balinese saka calendar	299–300
Bengali calendar	−215
Berber calendar	1328
Buddhist calendar	922
Burmese calendar	−260
Byzantine calendar	5886–5887
Chinese calendar	Đinh SửuNăm (FireOx) 3075 or 2868 — to — Mậu Dần năm (EarthTiger) 3076 or 2869
Coptic calendar	94–95
Discordian calendar	1544
Ethiopian calendar	370–371
Hebrew calendar	4138–4139
Hindu calendars
-Vikram Samvat	434–435
-Shaka Samvat	299–300
-Kali Yuga	3478–3479
Holocene calendar	10378
Iranian calendar	244 BP – 243 BP
Islamic calendar	252 BH – 251 BH
Javanese calendar	260–261
Julian calendar	378 CCCLXXVIII
Korean calendar	2711
Minguo calendar	1534 beforeROC Dân trước 1534 năm
Nanakshahi calendar	−1090
Seleucid era	689/690AG
Thai solar calendar	920–921
Tibetan calendar	Âm hỏa ngưu năm (female Fire-Ox) 504 or 123 or −649 — to — Dương thổ hổ năm (male Earth-Tiger) 505 or 124 or −648

Battle of Adrianople (378)

Year378(CCCLXXVIII) was acommon year starting on Monday(link will display the full calendar) of theJulian calendar.At the time, it was known as theYear of the Consulship of Valens and Augustus(or, less frequently,year 1131Ab urbe condita). The denomination 378 for this year has been used since the early medieval period, when theAnno Dominicalendar erabecame the prevalent method in Europe for naming years.

Events

By place

Roman Empire

• Spring – EmperorValensreturns toConstantinopleand mobilises an army (40,000 men). He appointsSebastianus,newly arrived from Italy, asmagister militumto reorganize the Roman armies inThrace.
• February– TheLentienses(part of theAlemanni) cross the frozenRhineand raid the countryside. They are driven back by Romanauxilia palatina(Celtae andPetulantes), who defend the western frontier.
• May–Battle of Argentovaria:EmperorGratianis forced to recall the army he has sent East. The Lentienses are defeated byMallobaudesnearColmar(France). Gratian gains the titleAlemannicus Maximus.
• Gothic War:Valens sends Sebastian with a body of picked troops (2,000 men) to Thrace and renews theguerrilla waragainst theGoths.He chases down small groups of Gothic raiders aroundAdrianople.
• Fritigernconcentrates his army atCabyle(Bulgaria). The Goths are mainly centred in the river valleys south of theBalkan Mountains,around the towns ofBeroea,Cabyle andDibaltum.
• July–Frigeridus,Roman general, fortifies the Succi (Ihtiman) Pass to prevent the "barbarians" from breaking out to the north-west (Pannonia).
• Gratian sets out fromLauriacum(Austria) with a body of light armed troops. His force is small enough to travel by boat down theDanube.He halts for four days atSirmium(Serbia) suffering fromfever.
• August– Gratian continues down the Danube to the "Camp of Mars" (frontierfortressnear modernNiš), where he loses several men in anambushby a band ofAlans.
• Fritigern strikes south from Cabyle, following theTundzha Rivertowards Adrianople, and tries to get behind thesupply linesto Constantinople.
• Romanreconnaissancedetects the Goths. Valens, already west of Adrianople, turns back and establishes a fortified camp outside the city.
• The Goths, with theirwagonsand families vulnerable to attack, withdraw back to the north. Roman scouts fail to detect theGreuthungicavalryforagingfurther up the Tundzha valley.
• Fritigern sends a Christianpriestto the Roman camp with an offer of terms and a letter for Valens. The peace overtures are rejected.
• Valens leads an elite Roman army to Thrace to confront revolts, but is defeated in theBattle of Adrianople.
• The Goths attack Adrianople; they attempt to scale thecity wallswith ladders but are repelled by the defenders, who drop lumps ofmasonry.
• The Goths, supported by theHuns,move on to Constantinople. Their progress is checked by theSaracens,recruited fromArabtribes 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.

Mesoamerica

• Siyaj K'ak'begins to replaceMayankings with relatives ofSpearthrower Owl,emperor ofTeotihuacan.
• Siyaj K'ak'conquersWakaon January 8.
• Siyaj K'ak'conquersTikalon January 16.
• Siyaj K'ak'conquersUaxactun.

By topic

Architecture

• Valens completes theaqueductof Constantinople begun byConstantine I.

Religion

• Gregory of Nazianzusis ordainedbishopof Constantinople.
• Pope Damasus Iis accused ofadulterybut is exonerated by Gratian.

Births

• Germanus of Auxerre,Christian bishop (approximate date)

Deaths

• August 9
  • Sebastianus,Roman general (magister peditum)
  • Traianus,Roman general (magister militum)
  • Valens,Roman consul and emperor (b.328)
• Flavius Arintheus,Roman politician and general
• Titus of Bostra,Christian bishop and theologian