40s BC

This article concerns the period 49 BC – 40 BC.

Significant people

 * Julius Caesar, Roman dictator (lived 100–44 BC, term 46–44 BC)
 * Marcus Junius Brutus, Roman politician (85–42 BC)
 * Mark Antony, Roman politician and general (83–30 BC)
 * Pharaoh Cleopatra VII of Egypt (lived 70/69–30 BC, reigned 51–30 BC)—enters her twenties, has son Caesarion with Julius Caesar, before meeting Mark Antony
 * Gaius Iulius Caesar Octavianus, Roman politician and general (62 BC–AD 14)
 * Pharaoh Ptolemy XV Caesarion (lived 47–30 BC, reigned 44–30 BC)
 * Gaius Cassius Longinus, Roman politician (died 42 BC)