Battles of the ancient world

This battle (405 BC) on the Hellespont (Dardanelles) ended the Peloponnesian War and the Athenian Empire. After a setback at the Battle of Arginusae in 406 BC, the Spartans reinstated Lysander as the commander of their fleet.

When Commius launched a massive attack on the Romans, Caesar was able to defeat him and force the surrender of Vercingetorix.

Although the Romans were outnumbered by as much as four to one, they proved victorious in what was the turning point of the Gallic Wars.

Marcus Agrippa commanded Octavian's fleet, which consisted of small, nimble Liburnian ships. Antony's fleet consisted of massive Quinqueremes, which were less mobile.

Following his victory in the battle, Octavian titled himself Princeps, and later Augustus. To some, Actium signals the end of the Roman Republic.

The Parthian General Surena decisively defeated a numerically superior Roman invasion force under the command of Marcus Licinius Crassus.

Prior to the battle, Constantine supposedly had a vision of God promising victory to his forces if he painted his shields with the Chi-Rho, a Christian symbol.

Constantine was indeed victorious, and Maxentius drowned in the Tiber River during the battle. Eventually, Constantine was able to abolish the Tetrarchy, become the sole ruler of the Roman Empire, and end persecution of the Christians.