Arabic Al-ijz Region of western Saudi Arabia. It occupies an area of 134,600 sq mi (348,600 sq km) along the Red Sea coast of the Arabian Peninsula, from Jordan to Asr province. Its northern portion was inhabited by the 6th century BC. In the 7th century AD two of its cities, Mecca and Medina, were the birthplace of Islam; they remain Islam's holiest cities. In 1258 the region fell to the Mamlk dynasty and in 1517 to the Ottomans. In 1916 Sharif Husayn ibn Al revolted and proclaimed himself king of the Hejaz. Ibn Sad, the ruler of Nejd, assumed the title in 1926, and in 1932 he united Hejaz, Nejd, and other districts to form the Kingdom of Saudi Arabia
a coastal region of the western Arabian Peninsula bordering on the Red Sea; includes both Mecca and Medina; formerly an independent kingdom until it united with Nejd to form the Kingdom of Saudi Arabia