Sinai Peninsula has been part of Egypt from the First Dynasty.
=== Achaemenid Persian Period ===At the end of the time of Darius I, the Great (521486 BCE) Sinai was part of the Persian province of Abar-Nahra, which means 'beyond the river [Euphrates]'
 Israel invaded and occupied Sinai during the Suez Crisis (known in Egypt as the Tripartite Aggression due to the simultaneous coordinated attack by the UK, France and Israel) of 1956, and during the Six-Day War of 1967

