100 BC

Millennium:	1st millennium BC
Centuries:	2nd century BC - 1st century BC - 1st century
Decades:	130s BC 120s BC 110s BC - 100s BC - 90s BC 80s BC 70s BC
Years:	103 BC 102 BC 101 BC - 100 BC - 99 BC 98 BC 97 BC

100 BC by topic
Politics
State leaders - Sovereign states
Birth and death categories
Births - Deaths
Establishments and disestablishments categories
Establishments - Disestablishments v • d • e

The world in 100 BC.

The eastern hemisphere in 100 BC.

**100 BC in other calendars**
Gregorian calendar	100 BC
Ab urbe condita	654
Armenian calendar	N/A
Bahá'í calendar	-1943 – -1942
Berber calendar	851
Buddhist calendar	445
Burmese calendar	-737
Byzantine calendar	5409 – 5410
Chinese calendar	[[Sexagenary cycle\|]]年 (2537/2597) — to — [[Sexagenary cycle\|]]年 (2538/2598)
Coptic calendar	-383 – -382
Ethiopian calendar	-107 – -106
Hebrew calendar	3661 – 3662
Hindu calendars
- Vikram Samvat	-44 – -43
- Shaka Samvat	N/A
- Kali Yuga	3002 – 3003
Holocene calendar	9901
Iranian calendar	721 BP – 720 BP
Islamic calendar	743 BH – 742 BH
Japanese calendar
Korean calendar	2234
Thai solar calendar	444
v • d • e

Year 100 BC was a year of the pre-Julian calendar.

Events

Consuls: Lucius Valerius Flaccus, Gaius Marius (Marius's sixth consulship).
Manius Aquillius celebrates an ovation for victories in the Second Servile War.
Lucius Appuleius Saturninus, a tribune, passes a law to redistribute land to military veterans. The law requires that all senators swear to abide by it. Quintus Caecilus Metellus Numidicus refuses and is exiled. He goes to Rhodes to study philosophy.
December: Saturninus stands for consul for the following year. A rival candidate, Gaius Memmius, is found murdered by agents of Saturninus, who is declared a public enemy by the Senate. Marius, as consul, defeats his former ally in battle in the Forum. Saturninus and his followers surrender on condition that their lives are spared, but they are stoned to death with roof tiles by renegade senators.
The building of the Sanctuary of Fortuna Primigenia, Palestrina, Italy, is begun. The model of it is now kept at the Museo Archeológico Nazionale, Italy (approximate date).