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Mark Twain was no fan of the postal service.

Some feuds make—and change!—history. The Hatfields and McCoys. Edison versus Tesla. Coke and Pepsi. Here are eight tales of petty jealousy and downright spite that were made for the history books. (And we’ve determined the winners!)

Lucas Reilly






















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Happy leap year! You can thank Julius Caesar and his buddies for bringing them to Europe more than 2000 years ago.

Ellen Gutoskey