340

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Millennium: 1st millennium
Centuries:
Decades:
Years:
340 in various calendars
Gregorian calendar340
CCCXL
Ab urbe condita1093
Assyrian calendar5090
Balinese saka calendar261–262
Bengali calendar−253
Berber calendar1290
Buddhist calendar884
Burmese calendar−298
Byzantine calendar5848–5849
Chinese calendar己亥(Earth Pig)
3036 or 2976
    — to —
庚子年 (Metal Rat)
3037 or 2977
Coptic calendar56–57
Discordian calendar1506
Ethiopian calendar332–333
Hebrew calendar4100–4101
Hindu calendars
 - Vikram Samvat396–397
 - Shaka Samvat261–262
 - Kali Yuga3440–3441
Holocene calendar10340
Iranian calendar282 BP – 281 BP
Islamic calendar291 BH – 290 BH
Javanese calendar221–222
Julian calendar340
CCCXL
Korean calendar2673
Minguo calendar1572 before ROC
民前1572年
Nanakshahi calendar−1128
Seleucid era651/652 AG
Thai solar calendar882–883
Tibetan calendar阴土猪年
(female Earth-Pig)
466 or 85 or −687
    — to —
阳金鼠年
(male Iron-Rat)
467 or 86 or −686

Year 340 (CCCXL) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Acindynus and Valerius (or, less frequently, year 1093 Ab urbe condita). The denomination 340 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]

  • Constantinople, capital of Emperor Constantius II, becomes the largest city in the world, taking the lead from Rome, capital of his brother Constans I.[1]
  • Constantine II, Emperor of the central part of the Roman empire (the upper Danube, Italy and middle Africa), crosses the Alps and attacks the army of his brother Constans I, emperor of the western part of the Roman Empire (Britain, Gaul, the Rhine provinces and Iberia). They clash at Aquileia in northern Italy. Constantine is killed in a skirmish by an ambush of Constans' troops.
  • Constans is left sole ruler of the Western Roman Empire, with his other brother, Constantius II, Emperor of the Eastern Roman Empire.

By topic[edit]

Religion[edit]


Births[edit]

Deaths[edit]

References[edit]