194 BC

Greece

 * After checking the ambitions of Nabis, the tyrant of Sparta, the Roman forces under proconsul Titus Quinctius Flamininus finally withdraw from Greece.
 * With the Roman legions under Flaminius returning to Italy, the Greek states are once again on their own. The Romans leave the dominant powers in the region; the kingdom of Macedonia, the Aetolians, the strengthened Achaean League and the weakened Sparta. The Aetolians, who have opposed the Roman intervention in Greek affairs, incite the Spartan leader, Nabis, to retake his former territories and regain his influence in Greek affairs.

Seleucid Empire

 * With his peace agreement with the Egyptians in place, Antiochus III now turns his attention to the West. He is encouraged to challenge Rome's protection of the Greeks by his advisor, the former Carthaginian general Hannibal.
 * Philip V of Macedon, along with Rhodes, Pergamum, and the Achaean League, join Rome against Antiochus III.

Roman Republic

 * The Battle of Mutina is fought between the Romans and the Boii (a Gallic tribe). The Romans are victorious in the battle which effectively ends the threat of the Gauls in Italy.
 * The Italian towns of Liternum and Puteoli become Roman colonies.

China

 * The construction of the first city wall of Chang'an begins.
 * Empress Lü protects the accession of her son Emperor Hui by executing Consort Qi and her son to Gaozu, Liu Ruyi.

Korea

 * The Wiman Joseon kingdom of northern Korea (Choson) is founded by the Chinese Han dynasty general Wiman.

Deaths

 * Eratosthenes, Greek mathematician, geographer and astronomer (b. 276 BC)
 * Concubine Qi, also known as Lady Qi or Consort Qi, favoured concubine of Han Gaozu (personal name Liu Bang), the first emperor of the Chinese Han dynasty