S1, E3: Years after the death of the Prophet Muhammad, the Islamic Empire had achieved global supremacy. And while it was expanding in territory, its people were expanding their minds. Discover how medieval Muslim scholars saved Greek knowledge from oblivion and generated revolutionary scientific ideas of their own. Join us as we explore their forgotten contribution to world knowledge. Then learn how the Christian conquest of Muslim Spain spurred on a new dawn for intellectual life, kick-starting Europe's emergence from the Dark Ages.