155 BCCenturies: 3rd century BC - 2nd century BC - 1st century BC
- On the command of Punicus (maybe a Carthage's general) first and Cesarus after, the people of Lusitania reached Gibraltar. Here they were defeated by praetor Lucius Mummius.
- Greek philosophy introduced into Rome.
- Menander of India(Indo-Greek king) came to power.
- Priene becomes a dependency of Rome
- Gaius Marius (Roman general)