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 fishing grounds, extensive reefs (mostly rocky, but also coral), and abundant pearl oysters, but its ecology has been damaged by industrialization and oil spills. The body of water is historically and internationally known as the "Persian Gulf". Some Arab governments refer to it as the "Arabian Gulf" () or "The Gulf", but neither term is recognized internationally. The name "Gulf of Iran (Persian Gulf)" is used by the International Hydrographic Organization. The Persian Gulf resides in the Persian Gulf Basin, which is of Cenozoic origin and related to the subduction of the Arabian Plate under the Zagros Mountains. The current