86 BC

Millennium:	1st millennium BC
Centuries:	2nd century BC 1st century BC 1st century
Decades:	100s BC 90s BC 80s BC 70s BC 60s BC
Years:	89 BC 88 BC 87 BC 86 BC 85 BC 84 BC 83 BC

86 BC in various calendars

Gregorian calendar	86 BC LXXXVI BC
Ab urbe condita	668
Ancient Egypt era	XXXIII dynasty, 238
- Pharaoh	Ptolemy IX Lathyros, 3
Ancient Greek era	173rd Olympiad, year 3
Assyrian calendar	4665
Balinese saka calendar	N/A
Bengali calendar	−678
Berber calendar	865
Buddhist calendar	459
Burmese calendar	−723
Byzantine calendar	5423–5424
Chinese calendar	甲午年 (Wood Horse) 2612 or 2405     — to — 乙未年 (Wood Goat) 2613 or 2406
Coptic calendar	−369 – −368
Discordian calendar	1081
Ethiopian calendar	−93 – −92
Hebrew calendar	3675–3676
Hindu calendars
- Vikram Samvat	−29 – −28
- Shaka Samvat	N/A
- Kali Yuga	3015–3016
Holocene calendar	9915
Iranian calendar	707 BP – 706 BP
Islamic calendar	729 BH – 728 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2248
Minguo calendar	1997 before ROC 民前1997年
Nanakshahi calendar	−1553
Seleucid era	226/227 AG
Thai solar calendar	457–458
Tibetan calendar	阳木马年 (male Wood-Horse) 41 or −340 or −1112     — to — 阴木羊年 (female Wood-Goat) 42 or −339 or −1111

Year 86 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Cinna and Marius/Flaccus (or, less frequently, year 668 Ab urbe condita). The denomination 86 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

• First Mithridatic War
  • March 1 – Sulla captures Athens from the Pontic army, removing the tyrant Aristion.
  • Lucius Licinius Lucullus decisively defeats the Mithridatic fleet in the Battle of Tenedos.
  • The Roman forces of Lucius Cornelius Sulla defeat the Pontic forces of Archelaus in the Battle of Chaeronea.
  • The Dardani ally with Pontus and are defeated by Sulla soon after

Births

• October 1 – Sallust, Roman historian (d. 34 BC)
• Faustus Cornelius Sulla, Roman senator, son of the dictator Lucius Cornelius Sulla (d. 46 BC)
• Fausta Cornelia Sulla, twin sister of Faustus Cornelius Sulla, wife of Gaius Memmius and later of Titus Annius Milo Papianus

Deaths

• January 13 – Gaius Marius, Roman general and politician (b. 157 BC)
• After March 1 – Aristion, philosopher and tyrant of Athens
• Sima Qian, Chinese historian (b. 145 BC)