The Abbasid Caliphs of 9th century Baghdad established a cultural and intellectual center that gave birth to Algebra and Optics and laid the foundation of Pharmacology and modern hospitals. Oh, sweet whispering Muse of History, open our ears to the beauty of your song, so often drowned out by the distortions of our chaotic present! 8.5″x8″ Digital N/A N/A N/A