Arab Knowledge Transferred to Europe via Al-Andalus

When Christian kingdoms completed the Reconquista of the Iberian Peninsula (culminating in Granada's fall, 1492), they gained access to the vast intellectual legacy of Al-Andalus (Muslim Spain, 711–1492). This included:

• Navigation & Cartography: Al-Idrisi's world map (1154), improved astrolabes, portolan charts, knowledge of Atlantic currents—critical for the Age of Exploration.
• Engineering & Hydraulics: Water wheels (norias), qanats, irrigation systems, segmented arch bridges, paper mills.
• Mathematics & Astronomy: Hindu-Arabic numerals, algebra (al-Khwarizmi), trigonometry, planetary models (al-Zarqali), instruments.
• Medicine & Pharmacology: Ibn Sina's Canon of Medicine, surgical tools, pharmacopeias, hospitals.
• Philosophy & Science: Aristotle commentaries (Ibn Rushd/Averroes), optics (Ibn al-Haytham), chemistry (Jabir ibn Hayyan).

Translation centers in Toledo, Barcelona, and Sicily rendered Arabic works into Latin, catalyzing the European Renaissance and Scientific Revolution. This transfer was gradual (11th–13th centuries peak), not solely post-1492.