from an eponymous father named Ya'rub, who was supposedly the first to speak Arabic. Abu Muhammad al-Hasan al-Hamdani had another view; he states that Arabs were called gharab ('westerners') by Mesopotamians because Bedouins originally resided to the west of Mesopotamia; the term was then corrupted into arab. Yet another view is held by al-Masudi that the word Arab was initially applied to the Ishmaelites of the Arabah valley. In Biblical etymology, Arab (Hebrew: arvi) comes from the desert origin of the Bedouins it originally described (arava means 'wilderness'). The root ʿ-r-b has several additional meanings in Semitic languages—including 'west, sunset', 'desert', 'mingle', 'mixed', 'merchant' and 'raven'—and are "comprehensible" with all of these having varying degrees of relevance to the emergence of the name. It is also possible that some forms were metathetical from , 'moving around' (Arabic: , 'traverse') and hence, it is alleged, 'nomadic'. History Antiquity Pre-Islamic Arabia refers to the Arabian Peninsula prior to the rise of Islam in the 630s. The study of Pre-Islamic Arabia is important to Islamic studies as it provides the context for the development of Islam. Some of the settled communities in the Arabian Peninsula developed into distinctive civilizations. Sources for these civilizations are not extensive, and are limited to archaeological evidence, accounts written outside of Arabia, and Arab oral traditions later recorded by Islamic scholars. Among the most prominent civilizations was Dilmun, which arose around the 4th millennium BCE and lasted to 538 BCE, and Thamud, which arose around the 1st millennium BCE and lasted to about 300 CE. Additionally, from the beginning of the first millennium BCE, Southern Arabia was the home to a number of kingdoms, such as the Sabaean kingdom (, possibly Sheba), and the coastal areas of Eastern Arabia were controlled by the Parthian and Sassanians from 300 BCE. Origins and early history According to Arab-Islamic-Jewish traditions, Ishmael was father of the Arabs, to be the ancestor of the Ishmaelites. Both Judaism and Islam see him as the ancestor of Arab peoples. Ishmael is recognized by Muslims as the ancestor of several prominent Arab tribes and being the forefather of Muhammad. A–Z of Prophets in Islam and Judaism, Wheeler, Ishmael Muslims also believe that Muhammad was the descendant of Ishmael that would establish a great nation, as promised by God in the Old Testament. Genesis 17:20 Ishmael was considered the ancestor of the Northern Arabs and Muhammad was