178 BC

Millennium:	1st millennium 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:	181 BC 180 BC 179 BC – 178 BC – 177 BC 176 BC 175 BC

178 BC by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments

**178 BC in other calendars**
Gregorian calendar	178 BC
Ab urbe condita	576
Armenian calendar	N/A
Bahá'í calendar	-2021 – -2020
Bengali calendar	-770
Berber calendar	773
Buddhist calendar	367
Burmese calendar	-815
Byzantine calendar	5331 – 5332
Chinese calendar	[[Sexagenary cycle\|]]年 (2459/2519) — to — [[Sexagenary cycle\|]]年 (2460/2520)
Coptic calendar	-461 – -460
Ethiopian calendar	-185 – -184
Hebrew calendar	3583 – 3584
Hindu calendars
- Bikram Samwat	-121 – -120
- Shaka Samvat	N/A
- Kali Yuga	2924 – 2925
Holocene calendar	9823
Iranian calendar	799 BP – 798 BP
Islamic calendar	824 BH – 823 BH
Japanese calendar
Korean calendar	2156
Thai solar calendar	366

Events

In Rome, the praetor Lucius Postumius Albinus celebrates a triumph after conquering the Vaccaei and Lusitani during his time as Roman commander in the province of Hispania Ulterior.

One of Perseus' first acts on becoming king of Macedonia is to renew the treaty between Macedonia and Rome. In the mean time, Perseus builds up the Macedonian army and puts out feelers for creating an alliance with the Greek leagues, with his northern barbarian neighbours, and also with the Seleucid king Seleucus IV.