End of native/Hellenistic statehood
Who & why: after Cleopatra VII and Mark Antony's defeat at the Battle of Actium (31 BCE), Octavian (soon Augustus) enters Alexandria; Cleopatra's suicide in August 30 BCE ends the Ptolemaic dynasty and, with it, nearly three millennia of Egypt as its own independent kingdom. Egypt becomes Augustus's personal province, governed by an equestrian prefect rather than the Senate — Rome's breadbasket for the next four centuries.
What it represents: the closing point of this page's arc. Egypt's continuing story as a Roman and Byzantine province, an early center of Christianity, a conquest of the Islamic caliphates from 641 CE, and eventually a modern nation is carried by this atlas's own Egypt page.