371 BC

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Millennium: 1st millennium BC
371 BC in various calendars
Gregorian calendar 371 BC
Ab urbe condita 383
Ancient Egypt era XXX dynasty, 10
- Pharaoh Nectanebo I, 10
Ancient Greek era 102nd Olympiad, year 2
Assyrian calendar 4380
Balinese saka calendar N/A
Bengali calendar −963
Berber calendar 580
Buddhist calendar 174
Burmese calendar −1008
Byzantine calendar 5138–5139
Chinese calendar 己酉(Earth Rooster)
2326 or 2266
    — to —
庚戌年 (Metal Dog)
2327 or 2267
Coptic calendar −654 – −653
Discordian calendar 796
Ethiopian calendar −378 – −377
Hebrew calendar 3390–3391
Hindu calendars
 - Vikram Samvat −314 – −313
 - Shaka Samvat N/A
 - Kali Yuga 2730–2731
Holocene calendar 9630
Iranian calendar 992 BP – 991 BP
Islamic calendar 1022 BH – 1021 BH
Javanese calendar N/A
Julian calendar N/A
Korean calendar 1963
Minguo calendar 2282 before ROC
Nanakshahi calendar −1838
Thai solar calendar 172–173
Tibetan calendar 阴土鸡年
(female Earth-Rooster)
−244 or −625 or −1397
    — to —
(male Iron-Dog)
−243 or −624 or −1396
Battle of Leuctra

Year 371 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Fifth year without Tribunate or Consulship (or, less frequently, year 383 Ab urbe condita). The denomination 371 BC 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.


By place[edit]


  • A fresh peace congress is summoned at Sparta. At the peace conference, the Spartan King Agesilaus II (with the support of Athens) refuses to allow the Thebans to sign the treaty on behalf of all Boeotia. The Theban statesman Epaminondas, who is boeotarch (one of the five magistrates of the Boeotian federation), maintains Thebes' position, even when it leads to the exclusion of Thebes from the peace treaty.
  • Thebes' actions at the peace congress lead to a war between Sparta and Thebes. The Spartans have an army stationed on Thebes' western frontier, waiting to follow up their diplomatic success by a crushing military attack. However, at the Battle of Leuctra, the Theban generals, Epaminondas and Pelopidas, win a decisive victory over the Spartans under the other Spartan king, Cleombrotus I (who is killed in the battle). Epaminondas wins the battle with a tactical innovation which involves striking the enemy first at their strongest, instead of their weakest, point, with such crushing force that the attack is irresistible. As a result of this battle, the Boeotian federation is saved.
  • Athens does not welcome the Theban victory, fearing the rising aggressiveness of Thebes. After the Theban victory, the old alliance between the Persians and the Thebans is restored.
  • With the unexpected defeat of Sparta by the Thebans, the Arcadians decide to re-assert their independence. They rebuild Mantinea, form an Arcadian League and build a new federal city, Megalopolis.
  • Agesipolis II succeeds his father Cleombrotus I as king of Sparta.

By topic[edit]