Persian Gulf National Day Persian Gulf National Day National Persian Gulf Day () is an official holiday in Iran that takes place on the 10th of Ordibehesht, the second month on the Iranian calendar _ usually occurring on 30 April on the Georgian calendar _ to commemorate Persian Gulf. The date coincides with the anniversary of Abbas I of Persia's successful military campaign when the Portuguese navy was driven out of the Strait of Hormuz in the Capture of Ormuz (1622). The decision was taken by the High Council of Cultural Revolution, presided over by former President Mohammad Khatami, noting that the campaign launched
Persian Gulf petrochemical industry. In 2002, the Persian Gulf nations of Bahrain, Iran, Iraq, Kuwait, Qatar, Saudi Arabia, and the UAE produced about 25% of the world's oil, held nearly two-thirds of the world's crude oil reserves, and about 35% of the world's natural gas reserves. The oil-rich countries (excluding Iraq) that have a coastline on the Persian Gulf are referred to as the "Persian Gulf States". Iraq's egress to the gulf is narrow and easily blockaded consisting of the marshy river delta of the Shatt al-Arab, which carries the waters of the Euphrates and the Tigris rivers, where the east bank