Wahhabism began as a reform movement within Islam in the eighteenth century in what is now Saudi Arabia. It is named after Muhammad Ibn Abd Al-Wahhab (1703-1792), who was a follower of Ibn Taymiyyah (1263-1328). Like Ibn Taymiyyah, Al-Wahhab advocated purging Islam of all of beliefs and practices that did not fit his literal reading of the Quran and the Sunni Tradition (Hadith).
Al-Wahhab teamed up with Muhammad Ibn-Saud in 1744 to build the first Saudi state in Arabia. Today’s Kingdom of Saudi Arabia continues to subscribe to Wahhabi ideology and pours millions of dollars into promoting it, especially in Africa and Asia.
Wahhabis today are inspired by Al-Wahhab’s uncompromising applications of Ibn Taymiyyah’s puritanism. Most Sunni Islamist groups – Islamic State, Al-Qaeda, Boko Haram, etc. – are Wahhabi, even though some prefer to call themselves Salifis – those who revere the first three generations of Muslims (the salaf).
Both Wahhabis and Salifis seek to live strictly like the first generations of Muslims from the seventh century. While Wahhabism is influential across most of the Muslim world, it is difficult to estimate how many millions subscribe to this Islamist ideology.