The work traces the history of Muslim rule in Sicily, explaining why that history remained obscure, surveys Arabic and Latin sources, recounts the loss and dispersal of manuscripts, analyzes medieval chroniclers' errors and etymologies, and outlines later European scholarly efforts to recover and translate Arabic texts, coins, and inscriptions; it situates the subject within evolving oriental studies and presents historiographical criticism of earlier local writers while pointing to ongoing research that clarifies the island's Islamic past.