Since the classical era, traditional Islamic religious culture was divided between two main theological schools, Sufi-Ash'arism represented by Ghazzali (1058-1111) and Salafism represented by Ibn Taymiyya (1263-1328). The dispute between these two schools of thought dominated the Sunni world, splitting their influence across religious communities & cultures, with each school competing for scholarly authority via official and unofficial religious institutions. The relationship between Salafism and Sufism – two movements of Islam with different interpretations of Islam – is historically diverse and reflects some of the changes and conflicts in the Muslim world today.