Decades: 240s BC 230s BC 220s BC 210s BC 200s BC - **190s BC** - 180s BC 170s BC 160s BC 150s BC 140s BC

Years: 199 BC 198 BC 197 BC 196 BC 195 BC - **194 BC** - 193 BC 192 BC 191 BC 190 BC 189 BC

- Rome declares war upon Antiochus III the Great, king of Syria.
- Battle of Mutina: Romans are victorious over the Gauls.
- In the Battle of Gythium, Philopoemen of the Achaean League, assisted by the Romans, defeats the Spartans under Nabis.
- Puteoli becomes a Roman colony.

- Eratosthenes, Greek mathematician and astronomer