What event ended the Hellenistic period of Egypt?

Answer 1

The Hellenistic period in Egypt is generally considered to have ended with the Roman conquest of Egypt in 30 BCE. This event followed the defeat of Queen Cleopatra VII and Mark Antony by Octavian (who later became Emperor Augustus) at the Battle of Actium in 31 BCE, and the subsequent invasion of Egypt. Egypt then became a province of the Roman Empire, marking the transition from Hellenistic rule to Roman control.