- First humans (63,000 years ago)
- Islam is established by Muhammad (7th century AD)
- Muhammad unites Arabian tribes (7th century AD)
- Rashidun Caliphate (632 - 661 AD)
- Ridda Wars (632 - 633 AD)
- Umayyad Caliphate (661 - 750 AD)
- Abbasid Caliphate (750 - 1517 AD)
- Fatimid Caliphate (909 - 1171 AD)
- Sharifate of Mecca (968 - 1925 AD)
- Ottoman Empire occupies Saudi Arabia (1517-1918)
- House of Saud (1720 - now)
- Diriyah Emirate (1744-1818)
- Wahhabi War (1811-1818)
- Nejd Emirate (1824-1891)
- Riyadh Emirate (1902-1913)
- Nejd and Hasa Emirate (1913-1921)
- Arab Revolt (1916-1918)
- Partition of the Ottoman Empire (1918-1922)
- Nejd Sultanate (1921-1926)
- Kingdom of Hejaz and Nejd (1926-1932)
- Ikhwan Revolt (1927-1930)
- Kingdom of Saudi Arabia (1932 - 2015)
- Saudi-Yemeni War (1934)
- Discovery of oil in Saudi Arabia (1938)
- OPEC and Saudi Arabia embargo oil (1973)
- Grand Mosque seizure (1979)
- Qatif uprising (1979)
- Arab Spring (2010-2012)
- Yemeni Civil War (2014 - now)
(This post includes any nation or civilization that occupied at least a portion of Saudi Arabia at some point. Unless specified otherwise, the dates correspond to when a nation or civilization existed, but do not necessarily correspond to occupation of Saudi Arabia.)
