The Persian Gulf naming dispute is concerned with the name of the body of water known historically and internationally as the Persian Gulf, after Persia (the Western exonym for Iran). This name has become contested by some Arab countries since the 1960s in connection with the emergence of pan-Arabism and Arab nationalism, resulting in the increased use of the toponym "Arabian Gulf" () as well as the "Gulf", which are terms used in some Arab countries. Overview This body of water was referred to as the Persian Gulf by Arab historians and geographers, including the Arab Christian writer Agapius, writing in the 10th century. According to authors Philip L. Kohl, Mara Kozelsky, and Nachman Ben-Yehuda in their work Selective Remembrances, Sir Charles Belgrave (British adviser to the ruler of Bahrain) was "the first westerner to use and advocate the name 'Arabian gulf', first in the journal Soat al-Bahrain (Voice of Bahrain) in 1955." Mahan Abedin of The Jamestown Foundation agrees with this, noting that Arab countries used the term "Persian Gulf" until the 1960s. However, with the rise of Arab nationalism during that decade, some Arab countries, including the ones bordering the Gulf, adopted widespread use of the term (al-Khalīj al-ʻArabī; Arab Gulf or Arabian Gulf) to refer to this waterway. Teymoor Nabili (a senior presenter for Al Jazeera English) said "ironically, among the major drivers of the movement for change were Arab perceptions that Iran, driven by Washington, had supported Israel during the Arab-Israeli war of 1973". This, coupled with the decreasing influence of Iran on the political and economic priorities of the English-speaking Western World, led to increasing acceptance, both in regional politics and the mostly petroleum-related business, of the new alternative naming convention "Arabian Gulf" in Arab countries. The capture of Baghdad by the Ottoman Empire in 1534 gave Turkey access to the Indian Ocean via the port of Basra at the head of the Persian Gulf. This coincided with the early mapmaking efforts of Gerard Mercator, whose 1541 terrestrial globe attempts to give the most up-to-date information, naming the gulf Sinus Persicus, nunc Mare de Balsera ("Persian Gulf, now Sea of Basra"). However, on his world map of 1569, the name is changed to Mare di Mesendin (after the peninsula Ra's Musandam, in modern-day Oman), while his rival Abraham Ortelius, for the world atlas of 1570, opted for Mare El Catif, olim Sinus Persicus (after the