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12 Events That Changed History: How the World as We Know it Came to Be

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Joshua J. Mark

Many events can be said to have changed history, and not everyone might agree with all of those chosen for this collection, but – undeniably – these twelve would appear somewhere on anyone's list:

First Agricultural Revolution
Development of Religion
Invention of Writing
Fall of the Western Roman Empire
The Renaissance
Invention of the Printing Press
The Scientific Revolution
The Enlightenment
The American Revolution
The Industrial Revolution
World War I
World War II

There are, of course, many more – including the rise and fall of the Achaemenid Empire, the conquests of Alexander the Great, the Mughal Empire, the Protestant Reformation – but the following collection will only address aspects of the twelve above.

Author's Note: Thanks to Mr. Colin Gamble for suggesting this piece.

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About the Author

Joshua J. Mark is World History Encyclopedia's co-founder and Content Director. He was previously a professor at Marist College (NY) where he taught history, philosophy, literature, and writing. He has traveled extensively and lived in Greece and Germany.

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Uploaded by Joshua J. Mark, published on 15 December 2025. The copyright holder has published this content under the following license: Creative Commons Attribution-NonCommercial-ShareAlike. This license lets others remix, tweak, and build upon this content non-commercially, as long as they credit the author and license their new creations under the identical terms. When republishing on the web a hyperlink back to the original content source URL must be included. Please note that content linked from this page may have different licensing terms.

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