|Millennium:||1st millennium BC|
|Centuries:||3rd century BC – 2nd century BC – 1st century BC|
|Decades:||190s BC 180s BC 170s BC – 160s BC – 150s BC 140s BC 130s BC|
|Years:||171 BC 170 BC 169 BC – 168 BC – 167 BC 166 BC 165 BC|
- June 22 – Third Macedonian War ends with the Battle of Pydna. Romans under Lucius Aemilius Paullus (awarded the surname "Macedonicus" for this victory) defeat and capture Perseus of Macedon when he surrendered. This ends the Antigonid dynasty, one of the three successor empires created upon the death of Alexander the Great, and starts Roman domination of Greece.