Persian Gulf naming dispute region, who did not use the term "Persian Gulf". In 2011 President Mahmoud Ahmadinejad made a speech to the United Nations General Assembly during which he said that the only correct name of the sea between Iran and the Arabian peninsula was the Persian Gulf, and he dismissed the use of any other names as illegitimate and void. Iran designates 30 April as National Persian Gulf Day. 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
Persian Gulf fall of Achaemenid Empire, and after the fall of the Parthian Empire, the Sassanid empire ruled the northern half and at times the southern half of the Persian Gulf. The Persian Gulf, along with the Silk Road, were important trade routes in the Sassanid empire. Many of the trading ports of the Persian empires were located in or around Persian Gulf. Siraf, an ancient Sassanid port that was located on the northern shore of the gulf, located in what is now the Iranian province of Bushehr, is an example of such commercial port. Siraf, was also significant in that it