172 BC

Centuries:	3rd century BC · 2nd century BC · 1st century BC
Decades:	200s BC 190s BC 180s BC 170s BC 160s BC 150s BC 140s BC
Years:	175 BC 174 BC 173 BC 172 BC 171 BC 170 BC 169 BC

**172 BC in other calendars**
Gregorian calendar	172 BC
Ab urbe condita	582
Armenian calendar	N/A
Bahá'í calendar	-2015 – -2014
Buddhist calendar	373
Chinese calendar	2465/2525 ([[Sexagenary cycle\|]]年) — to — 2466/2526 ([[Sexagenary cycle\|]]年)
Ethiopian calendar	-179 – -178
Hebrew calendar	3589 – 3590
Hindu calendars
- Vikram Samvat	-116 – -115
- Shaka Samvat	N/A
- Kali Yuga	2930 – 2931
Holocene calendar	9829
Iranian calendar	793 BP – 792 BP
Islamic calendar	817 BH – 816 BH
Japanese calendar
- Imperial Year	Kōki 489 (皇紀489年)
- Jōmon Era	9829
Julian calendar	-126
Korean calendar	2162
Thai solar calendar	372
v • d • e

[edit] Events

In Rome, the two consuls Gaius Popillius Laenas and Publius Aelius Ligus are both plebeian, a first in the history of the Republic.
Envoys from Carthage appear before the Roman Senate to request resolution of boundary disputes with Numidia.

Third Macedonian War commenced when war broke out between Perseus of Macedon and Eumenes II of Pergamum, after an assassination attempt on Eumenes, which instigated by Perseus, failed, Rome entered the war in support of Eumenes.