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Simo Häyhä was a Finnish sniper in WWII who, with over 700 kills in 105 days, can be thought of as the most deadly human in history. The Russians refered to him as The White Death.

From the 700s to the 1200s, Baghdad was an Intellectual Center unrivaled in the world. It's House of Wisdom studied mathematics, astronomy, medicine, alchemy and chemistry, zoology, and geography.