The Excursion of the One Who Yearns to Penetrate the Horizons, by al-Idrisi.
Muhammad ibn Muhammad al-Idrisi (circa 1100--1166) was an Arab geographer and adviser to Norman king Roger II of Sicily. He was born into a family of Andalusian and Maghreb princes and sharif saints, in Sabtah (Ceuta), on the coast of Morocco. Al-Idrisi studied in Cordoba, and traveled extensively in the Mediterranean region, Anatolia, the northwestern coast of the Iberian Peninsula, and possibly southern England. He is best known for his Nuzhat al-mushtāq fī ikhtirāq al-āfāq (The excursion of the one who yearns to penetrate the horizons), one of the greatest works of medieval geogra...