Significantly, the State increased funding for education and promulgated the universal basic education law which guarantees every child the right to free and compulsory education for nine years.
Later it was expounded on by various Islamic scholars, such as Ibn Taymiiya in the 13th century, but it did not become institutionalized until the mid-18th century when the theories promulgated by the radical cleric Muhammad ibn Abd al-Wahhab were accepted and imposed as the state religion of his realm by the founder of the House of Saud.