History is written in blood. For this list, well be looking at the most brutal acts inspired by vengeance from throughout time. Our countdown includes The Forty-seven Rōnin, Olga Decimated the Drevlians, Julius Caesar Killed His Pirate Captors, and more! Which of these do you find the most appalling? Let us know in the comments.

Watch more great history videos here:
Top 10 Worst Decisions in History: https://youtu.be/TjPmk62WajE
Top 10 Mind-Blowing Alternate Histories That Almost Happened: https://youtu.be/3M4aYRHnqpA
Top 10 Historically Accurate Movies: https://youtu.be/_q8NCKx3Pgw

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