Jamal Abdel Nasser and other Arabs leaders were using the Persian gulf. Abdel Khaleq al-Janabi, a Saudi Arabian historian, said "It's this name [Persian Gulf] that has been retained by history books and Arab historians, like Ibn Khaldoun and Ibn al Athir. It's also in treaties signed between the governors of the gulf and the British who dominated the region from the beginning of the 20th century ... From a scientific and historical point of view, it has been called the Persian Gulf since Alexander the Great". He said that it was "without foundation" to claim the Romans named it "Arabian Gulf". "Things didn't change until Nasser came to power and the rise of Arab nationalism. The Arabs then began to use the name 'Arabian Gulf, he added.