Persian Gulf flooding of the basin started 15,000 years ago due to rising sea levels of the Holocene glacial retreat. This inland sea of some is connected to the Gulf of Oman in the east by the Strait of Hormuz; and its western end is marked by the major river delta of the Shatt al-Arab, which carries the waters of the Euphrates and the Tigris. In Iran this is called "Arvand Rood", where "Rood" means "river". Its length is , with Iran covering most of the northern coast and Saudi Arabia most of the southern coast. The Persian Gulf is about wide
Persian Gulf naming dispute Persian Gulf naming dispute The Persian Gulf naming dispute is concerned with the name of the body of water known historically and internationally as the Persian Gulf (), after the land of Persia (the traditional name of Iran). This name has become contested by some Arab countries since the 1960s in connection with the emergence of pan-Arabism and Arab nationalism, resulting in the invention of the toponym "Arabian Gulf" () (used in some Arab countries), "the Gulf" and other alternatives such as the "Gulf of Basra", as it was known during the Ottoman rule of the region. On almost all