First Saudi state
The first Saudi state (Arabic: الدَّوْلَةُ السُّعُودِيَّةُ الْأُولَىٰ, romanized: ad-dawla as-suʿūdiyya al-ʾūlā), officially the Emirate of Diriyah (Arabic: إمارة الدرعية, romanized: ʾimāra ad-dirʿiyya), was a polity that existed on the Arabian Peninsula between 1744 and 1818. The emir of a Najdi town called Diriyah, Muhammad bin Saud Al Muqrin, and the religious leader Muhammad ibn Abd al-Wahhab signed a pact founding a socio-religious reform movement that propagated the Wahhabi religious doctrine under the political leadership of the House of Saud.