340

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Millennium: 1st millennium
Centuries:
Decades:
Years:
340 in various calendars
Gregorian calendar 340
CCCXL
Ab urbe condita 1093
Assyrian calendar 5090
Balinese saka calendar 261–262
Bengali calendar −253
Berber calendar 1290
Buddhist calendar 884
Burmese calendar −298
Byzantine calendar 5848–5849
Chinese calendar 己亥(Earth Pig)
3036 or 2976
    — to —
庚子年 (Metal Rat)
3037 or 2977
Coptic calendar 56–57
Discordian calendar 1506
Ethiopian calendar 332–333
Hebrew calendar 4100–4101
Hindu calendars
 - Vikram Samvat 396–397
 - Shaka Samvat 261–262
 - Kali Yuga 3440–3441
Holocene calendar 10340
Iranian calendar 282 BP – 281 BP
Islamic calendar 291 BH – 290 BH
Javanese calendar 221–222
Julian calendar 340
CCCXL
Korean calendar 2673
Minguo calendar 1572 before ROC
民前1572年
Nanakshahi calendar −1128
Seleucid era 651/652 AG
Thai solar calendar 882–883
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]