1926 Abdul-Aziz ibn Saud becomes the King of Hejaz and renames it Saudi Arabia.
1932 The Kingdom of Hejaz and Nejd is renamed the Kingdom of Saudi Arabia.
1938 Oil is discovered in Saudi Arabia.
1948 Following the demise of the British Mandate of Palestine, Egypt, Transjordan, Lebanon, Syria, Iraq and Saudi Arabia invade the territory partitioned for the Arab state by the British Mandate of Palestine thus starting the 1948 Arab-Israeli War.
1979 Grand Mosque Seizure: About 200 Sunni Muslims revolt in Saudi Arabia at the site of the Kaaba in Mecca during the pilgrimage and take about 6000 hostages. The Saudi government receives help from French special forces to put down the uprising.
2001 A federal grand jury in Alexandria, Virginia, indicts 13 Saudis and a Lebanese in the 1996 bombing of the Khobar Towers in Saudi Arabia that killed 19 American servicemen.
2009 Powerful storm brings 3 years worth of rain in 4 hours to Jeddah, Saudi Arabia, sparking terrible floods known as the 2009 Jeddah Floods, which kill over 150 people and sweep thousands of cars away right in the middle of Hajj in the second largest city of Saudi Arabia, Jeddah.