The document discusses the history of Islam in Spain from its introduction in the 8th century through the fall of Granada in 1492. It covers the initial conquest by Umayyad rulers, the establishment of emirates and caliphates in Córdoba and elsewhere, the cultural and scientific achievements under rulers like Abd al-Rahman III, and finally the Christian Reconquista that resulted in the defeat of the last Muslim kingdom in Granada and the expulsion of Muslims and Jews from the Iberian Peninsula.