James George Frazer
Al-Biruni and Ibn Hazm of the Islamic Golden Age compared the study of religious pluralism and their works have been significant in the fields of theology and philosophy. Social scientists in the 19th century took a strong interest in comparative and "primitive" religion through the work of Max Müller, Edward Burnett Tylor, William Robertson Smith, James George Frazer, Émile Durkheim, Max Weber, and Rudolf Otto.