In much of the region between Europe and China, Islam’s different universal concept of world order held sway, with its own vision of a single divinely sanctioned governance uniting and pacifying the world. In the seventh century, Islam had launched itself across three continents in an unprecedented wave of religious exaltation and imperial expansion. After unifying the Arab world, taking over remnants of the Roman Empire, and subsuming the Persian Empire, Islam came to govern the Middle East, North Africa, large swaths of Asia, and portions of Europe. Its version of universal order considered
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