81 BC

250 BC in various calendars

Gregorian calendar	250 BC CCL BC
Ab urbe condita	504
Ancient Egypt era	XXXIII dynasty, 74
- Pharaoh	Ptolemy II Philadelphus, 34
Ancient Greek era	132nd Olympiad, year 3
Assyrian calendar	4501
Balinese saka calendar	N/A
Bengali calendar	−842
Berber calendar	701
Buddhist calendar	295
Burmese calendar	−887
Byzantine calendar	5259–5260
Chinese calendar	庚戌年 (Metal Dog) 2448 or 2241     — to — 辛亥年 (Metal Pig) 2449 or 2242
Coptic calendar	−533 – −532
Discordian calendar	917
Ethiopian calendar	−257 – −256
Hebrew calendar	3511–3512
Hindu calendars
- Vikram Samvat	−193 – −192
- Shaka Samvat	N/A
- Kali Yuga	2851–2852
Holocene calendar	9751
Iranian calendar	871 BP – 870 BP
Islamic calendar	898 BH – 897 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2084
Minguo calendar	2161 before ROC 民前2161年
Nanakshahi calendar	−1717
Seleucid era	62/63 AG
Thai solar calendar	293–294
Tibetan calendar	阳金狗年 (male Iron-Dog) −123 or −504 or −1276     — to — 阴金猪年 (female Iron-Pig) −122 or −503 or −1275

81 BC in various calendars

Gregorian calendar	81 BC LXXXI BC
Ab urbe condita	673
Ancient Egypt era	XXXIII dynasty, 243
- Pharaoh	Ptolemy IX Lathyros, 8
Ancient Greek era	174th Olympiad, year 4
Assyrian calendar	4670
Balinese saka calendar	N/A
Bengali calendar	−673
Berber calendar	870
Buddhist calendar	464
Burmese calendar	−718
Byzantine calendar	5428–5429
Chinese calendar	己亥年 (Earth Pig) 2617 or 2410     — to — 庚子年 (Metal Rat) 2618 or 2411
Coptic calendar	−364 – −363
Discordian calendar	1086
Ethiopian calendar	−88 – −87
Hebrew calendar	3680–3681
Hindu calendars
- Vikram Samvat	−24 – −23
- Shaka Samvat	N/A
- Kali Yuga	3020–3021
Holocene calendar	9920
Iranian calendar	702 BP – 701 BP
Islamic calendar	724 BH – 723 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2253
Minguo calendar	1992 before ROC 民前1992年
Nanakshahi calendar	−1548
Seleucid era	231/232 AG
Thai solar calendar	462–463
Tibetan calendar	阴土猪年 (female Earth-Pig) 46 or −335 or −1107     — to — 阳金鼠年 (male Iron-Rat) 47 or −334 or −1106

Year 81 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Decula and Dolabella (or, less frequently, year 673 Ab urbe condita). The denomination 81 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

• Sulla is appointed dictator and reforms the Roman government.
• The Second Mithridatic War ends with the status quo.
• Cicero wins his first case.

Deaths

• Arshak I of Iberia