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Birth of Mohammad, founder of Islam.
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The Sassanid Empire under Shah Khosrau II sacks Jerusalem, taking away the relic of the True cross.
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Year one of the Islamic calendar begins, during which the Hijra occurs—Muhammad and his followers emigrate from Mecca to Medina in September
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The Yiwen Leiju encyclopedia is completed by Ouyang Xun.
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The Muslim conquests begin
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First Christian missionaries arrive in China
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Poets Du Fu and Li Bai meet for the first time.
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Zhu Wen overthrows the Tang Dynasty
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Huang Chao burns and loots the international seaport at Guangzhou, killing thousands of native Chinese and foreign merchants from all over the Asian continent.
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The Byzantine-Arab Wars begin. Much of the Roman Empire is conquered by Muslim Arabs led by Khalid ibn al-Walid