This document discusses the origin and expansion of Islam. It began in the Arabian Peninsula in the 7th century with the prophet Muhammad receiving revelations that became the Quran. After Muhammad's death, the new religion expanded rapidly under successive caliphates. The Rashidun Caliphate conquered the Middle East and North Africa in the 7th century, followed by expansion into West Asia, Central Asia, and parts of Europe and Africa under the Umayyad and Abbasid Caliphates through the 8th-11th centuries. The document also outlines the Islamic system of government organized around the caliph, judges, and governors, as well as the economy which relied on agriculture, crafts, and trade networks.