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Year 370 (CCCLXX) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Valens (or, less frequently, year 1123 Ab urbe condita). The denomination 370 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.
|Ab urbe condita||1123|
|Balinese saka calendar||291–292|
|Chinese calendar||己巳年 (Earth Snake)|
3066 or 3006
— to —
庚午年 (Metal Horse)
3067 or 3007
|- Vikram Samvat||426–427|
|- Shaka Samvat||291–292|
|- Kali Yuga||3470–3471|
|Iranian calendar||252 BP – 251 BP|
|Islamic calendar||260 BH – 259 BH|
|Minguo calendar||1542 before ROC|
|Seleucid era||681/682 AG|
|Thai solar calendar||912–913|
496 or 115 or −657
— to —
497 or 116 or −656
- Germanic Invasions: The German peoples surround the north borders of the Roman Empire, while the Huns are destroying everything in their path--villages, cities, even empires.
- A law of Valentinian I and Valens bans marriages between Romans and barbarians under penalty of death.
- An edict issued by Valentinian I and Valens bans the importation of wine and olive oil from areas controlled by the barbarians.
- The Huns migrate westward from the Volga into Europe, and subjugate the Alans and the Ostrogoths. With their arrival, a tradition of composite bows is introduced.
- Athanaric, Gothic leader of the Tervingi, advances eastwards and takes up a defensive position along the banks of the Dniester (Romania).
- Deng Xia (or Yingyuan), Chinese general (approximate date)
- Eudoxius of Antioch, Syrian patriarch of Constantinople
- Lucifer Calaritanus, founder of the Luciferian sect (approximate date)
- Pharantzem, Armenian queen and regent (approximate date)
- Strategius Musonianus, Roman politician (approximate date)
- Valentinianus Galates, Roman emperor (approximate date)
- Yuan Zhen (or Yanren), Chinese general and rebel leader
- Imperatores Valentinianus, Valens, Gratianus . Ad barbaricum transferendi vini et olei et liquaminis nullam quisquam habeat facultatem ne gustus quidem causa aut usus commerciorum. * VALENTIN. VALENS ET GRAT. AAA. AD THEODOTUM MAG. MIL.
- "Alaric - leader of Visigoths". Encyclopedia Britannica. Retrieved January 5, 2018.