Millennium:	1st millennium BC
Centuries:	3rd century BC 2nd century BC 1st century BC
Decades:	120s BC 110s BC 100s BC 90s BC 80s BC
Years:	108 BC 107 BC 106 BC 105 BC 104 BC 103 BC 102 BC

Politics
105 BC by topic
State leaders Political entities
Categories
Births Deaths
v t e

105 BC in various calendars
Gregorian calendar	105 BC CV BC
Ab urbe condita	649
Ancient Egypt era	XXXIII dynasty, 219
- Pharaoh	Ptolemy X Alexander, 3
Ancient Greek era	168th Olympiad, year 4
Assyrian calendar	4646
Balinese saka calendar	N/A
Bengali calendar	−697
Berber calendar	846
Buddhist calendar	440
Burmese calendar	−742
Byzantine calendar	5404–5405
Chinese calendar	乙亥年 (Wood Pig) 2593 or 2386 — to — 丙子年 (Fire Rat) 2594 or 2387
Coptic calendar	−388 – −387
Discordian calendar	1062
Ethiopian calendar	−112 – −111
Hebrew calendar	3656–3657
Hindu calendars
- Vikram Samvat	−48 – −47
- Shaka Samvat	N/A
- Kali Yuga	2996–2997
Holocene calendar	9896
Iranian calendar	726 BP – 725 BP
Islamic calendar	748 BH – 747 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2229
Minguo calendar	2016 before ROC 民前2016年
Nanakshahi calendar	−1572
Seleucid era	207/208 AG
Thai solar calendar	438–439
Tibetan calendar	阴木猪年 (female Wood-Pig) 22 or −359 or −1131 — to — 阳火鼠年 (male Fire-Rat) 23 or −358 or −1130

Year 105 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Rufus and Maximus (or, less frequently, year 649 Ab urbe condita) and the Sixth Year of Yuanfeng. The denomination 105 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

January 1^{[note 1]} – Gnaeus Mallius Maximus and Publius Rutilius Rufus become Roman consuls.^[1]
October 6 – The Battle of Arausio, where the Cimbri destroy two Roman armies on the Rhône, is the most severe defeat of Roman forces since the Battle of Cannae.
Gaius Marius, together with the consul Publius Rutilius Rufus, initiates sweeping reforms of the Roman army.
Lucius Cornelius Sulla secures the capture of Jugurtha. His success is made possible by the treachery of Bocchus I, king of Mauretania, and this ends the Jugurthine War (which began in 112 BC).
At Rome, the first official gladiator match is demonstrated by gladiators from Capua, as part of a training program for the military.

Asia

The Han Dynasty forms an alliance with the Wusun by marrying a Han princess to their king.^[2]
Wuwei Chanyu of the Xiongnu dies and is succeeded by his youthful son Er Chanyu. That winter heavy snowstorms lead to the deaths of many livestock, and there is discontent with the new ruler, who is regarded as belligerent.^[3]

Births

Decimus Laberius, Roman nobleman and Latin writer (d. 43 BC)
Tiberius Claudius Nero, Roman politician and general
Marcus Atius Balbus, Roman praetor and governor (d. 51 BC)

Deaths

Marcus Aurelius Scaurus, Roman politician and general, executed as a prisoner of war in the advent of the Battle of Arausio