"Ibn Abdelwahhab had taken Ibn Taymiyya’s pronouncements stripping Islam down to absolute monotheism and began to enforce them in Najd. He went further still by declaring war against anyone who didn’t follow his teachings—non-Muslims but also Muslims. The Najdi preacher had taken theology and turned it into a political and military mission. Ibn Abdelwahhab was so extreme that his own father and brother denounced him. He sent missives around the Arabian Peninsula and beyond to scholars and notables of the Muslim world, appealing to them to follow him and what he claimed was the true version of Islam. He was rejected and mocked in scathing responses coming from as far away as Tunisia, where the scholars of Al-Zaytuna, one of the oldest, most important centers of Islamic learning, undid his arguments one by one. The locals in his desert settlement accused him of heresy and tried to kill him."