answers: 1930
context: bin Saud, leader of the Al Saud, returned from exile in Kuwait to resume the conflict with the Al Rashid, and seized Riyadh – the first of a series of conquests ultimately leading to the creation of the modern state of Saudi Arabia in 1930. The main weapon for achieving these conquests was the Ikhwan, the Wahhabist-Bedouin tribal army led by Sultan bin Bajad Al-Otaibi and Faisal al-Duwaish. By 1906, Abdulaziz had driven the Al Rashid out of Najd and the Ottomans recognized him as their client in Najd. His next major acquisition was Al-Hasa, which he took from the </s> single Arab Muslim religious polity in the Arabian Peninsula. Following Muhammad's death in 632, Abu Bakr became leader of the Muslims as the first Caliph. After putting down a rebellion by the Arab tribes (known as the Ridda wars, or "Wars of Apostasy"), Abu Bakr attacked the Byzantine Empire. On his death in 634, he was succeeded by Umar as caliph, followed by Uthman ibn al-Affan and Ali ibn Abi Talib. The period of these first four caliphs is known as the Rashidun or "rightly guided" Caliphate ("al-khulafā' ar-rāshidūn"). Under the Rashidun Caliphs, and, from 661, their Umayyad successors, the </s> had in previous centuries. The emergence of the Saudi dynasty began in central Arabia in 1744. In that year, Muhammad ibn Saud, the tribal ruler of the town of Ad-Dir'iyyah near Riyadh, joined forces with the religious leader Muhammad ibn Abd-al-Wahhab, the founder of the Wahhabi movement. This alliance formed in the 18th century provided the ideological impetus to Saudi expansion and remains the basis of Saudi Arabian dynastic rule today. Over the next 150 years, the fortunes of the Saud family rose and fell several times as Saudi rulers contended with Egypt, the Ottoman Empire, and other Arabian families
question: when was the kingdom of saudi arabia created