Caliph · 763 – 809

Harun al-Rashid

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Emperor · 748 – 814

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  • Uniting Western Europe
  • Coronation as Emperor in 800 AD

Why The Frankish emperor with whom Harun famously exchanged embassies and gifts.

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Umar ibn al-Khattab

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Caliph · 584 – 644

Umar ibn al-Khattab was the second Rashidun caliph, one of the most powerful and influential leaders in Islamic history, under whom the early Muslim state expanded into a vast empire and developed its foundational institutions of government.

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  • Early Islamic conquests

Why An earlier caliph whose conquests built the empire Harun later ruled at its height.

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Al-Khwarizmi

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Mathematician · 780 – 850

Al-Khwarizmi was a Persian mathematician and scholar of the Islamic Golden Age, the "father of algebra", whose name gave us the word "algorithm".

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Why A scholar of the Abbasid golden age that Harun's patronage helped make possible.

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Emperor · 598 – 649

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Pharaoh · 1380 BC – 1334 BC

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Emperor · 304 BC – 232 BC

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Queen · 25 – 61

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Queen Regent · 1519 – 1589

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Empress · 1729 – 1796

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Emperor · 350 BC – 295 BC

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Military Leader · 688 – 741

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Emperor · 1500 – 1558

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General · 1887 – 1975

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Ruler · 69 BC – 30 BC

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King · 466 – 511

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Emperor · 272 – 337

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King · 550 BC – 486 BC

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Statesman · 1904 – 1997

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