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 Pro League Persian Gulf Pro League The Persian Gulf Pro League (), formerly known as the Iran Pro League (), is the highest division of professional football in Iran. The league was also known as the Persian Gulf Cup () from 2006. It is the top-level football league in Iran since its foundation in 2 November 2001. Each year, the top finishing team in the Persian Gulf Pro League becomes the Iranian football champion, and the lowest finishing teams are relegated to Azadegan League. Since 2013, the league comprises 16 teams. The winner and runner-up of the Persian Gulf Pro League and