Re: Event of the Year
 

170 BC

= Perseus of Macedon repulses a Roman army commanded by A. Hostilius Mancinus in Thessaly.

= The earliest known paved streets appear in Rome.

= Crates of Mallus visits Rome.

Re: Event of the Year
 

172 BC

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.

Re: Event of the Year
 

174 BC

In Rome, Quintus Fulvius Flaccus and Aulus Postumius Albinus become censors, and expel nine men from the Senate.

Re: Event of the Year
 

176 BC

Ptolemy VI becomes sole ruler of Egypt.

Re: Event of the Year
 

178 BC

The Roman Senate threatens intervention if Rhodes does not stop harassing the people of Lycia.

Re: Event of the Year
 

179 BC

Wars ended in Spain by the campaigns and peace settlement of Gracchus

Re: Event of the Year
 

181 BC

Aquileia is founded

Re: Event of the Year
 

183 BC

Hannibal, the great Carthaginian general, commits suicide at the court of Prusia I, the ruler of Bithyna.

Re: Event of the Year
 

184 BC

Cato the Elder is elected censor along with Lucius Valerius Flaccus, and initiates a number of unpopular reforms and crackdowns. He expels seven members of the Senate; one of them, a Manilius, for having "embraced his wife" during the day in the presence of their daughter (David Matz notes that the Greek verb periplakenai may have meant a more intimate sort of activity).

Re: Event of the Year
 

186 BC

The Roman Senate passes a law (the Senatus consultum de Bacchanalibus) prohibiting Bacchanalia — or the worship of Bacchus — except under certain circumstances that required the approval of the Senate. The decree proves ineffective.