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Millennium: 1st millennium BC
Centuries: 5th century BC – 4th century BC – 3rd century BC
Decades: 420s BC 410s BC 400s BC – 390s BC – 380s BC 370s BC 360s BC
Years: 393 BC 392 BC 391 BC – 390 BC – 389 BC 388 BC 387 BC
390 BC by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments
Ab urbe condita 364
Armenian calendar N/A
Bahá'í calendar -2233 – -2232
Bengali calendar -982
Berber calendar 561
Buddhist calendar 155
Burmese calendar -1027
Byzantine calendar 5119 – 5120
Chinese calendar [[Sexagenary cycle|]]年
(2247/2307)
— to —
[[Sexagenary cycle|]]年(2248/2308)
Coptic calendar -673 – -672
Ethiopian calendar -397 – -396
Hebrew calendar 3371 – 3372
Hindu calendars
- Vikram Samvat -334 – -333
- Shaka Samvat N/A
- Kali Yuga 2712 – 2713
Holocene calendar 9611
Iranian calendar 1011 BP – 1010 BP
Islamic calendar 1042 BH – 1041 BH
Japanese calendar
Korean calendar 1944
Thai solar calendar 154
Year 390 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Tribunate of Ambustus, Longus, Ambustus, Fidenas, Ambustus and Cornelius (or, less frequently, year 364 Ab urbe condita). The denomination 390 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.
Events
By place
Roman Republic
- July 18—Brennus, a chieftain of the Senones of the Adriatic coast of Italy, in the Battle of the Allia, leads an army of Cisalpine Gauls in their attack on Rome. They capture the entire city of Rome except for the Capitoline Hill, which is successfully held against them. However, seeing their city devastated, the Romans attempt to buy their salvation from Brennus. The Romans agree to pay one thousand pounds weight of gold.
- July 18—While Brennus is arguing over the weight of the gold with the Romans, the exiled dictator Marcus Furius Camillus appears with an army and refuses to allow him to take the gold. In an initial battle through Rome's streets, the Gauls are ejected from the city and in a second battle away from the city, Camillus defeats the invaders, earning the title of the 'Second Founder of Rome' for saving the city.
Egypt
- The Pharaoh of Egypt, Hakor (Akoris), concludes a tripartite alliance with Evagoras, king of Cyprus, and Athens.
By topic
Architecture
- The Temple of Aesculapius is built at Epidaurus.
Births
- The Tollund Man (approximate date, based on his being forty years old at the time of death)