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 BC, the southern part of the Persian Gulf was dominated by the Dilmun civilization. For a long time the most important settlement on the southern coast of the Persian Gulf was Gerrha. In the 2nd century the Lakhum tribe, who lived in what is now Yemen, migrated north and founded the Lakhmid Kingdom along the southern coast. Occasional ancient battles took place along the Persian Gulf coastlines, between the Sassanid Persian empire and the Lakhmid Kingdom, the most prominent of which was the invasion led by Shapur II against the Lakhmids, leading to Lakhmids' defeat, and advancement into Arabia, along