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 the southern shore lines. During the 7th century the Sassanid Persian empire conquered the whole of the Persian Gulf, including southern and northern shores. Between 625 BC and 226 AD, the northern side was dominated by a succession of Persian empires including the Median, Achaemenid, Seleucid and Parthian empires. Under the leadership of the Achaemenid king Darius the Great (Darius I), Persian ships found their way to the Persian Gulf. Persian naval forces laid the foundation for a strong Persian maritime presence in Persian Gulf, that started with Darius I and existed until the arrival of the British East India