Uploaded August 2026 | Updated September 2026, 3 weeks ago

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One person. One decision. Millions of lives changed forever. Join us as we count down history's most catastrophic events triggered by a single individual's actions, policies, and ideology. From genocides to forced marches and devastating famines, these disasters reshaped entire civilizations. Which of these figures do you think caused the greatest damage? Let us know in the comments below.

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