Today in History is a daily newsletter from Britannica. (more) Today in History—May 5: The Battlefield Tale of Cinco de Mayo Written by Michele Metych Michele Metych is the lead editor for Today in History at Encyclopædia Britannica. Michele Metych Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated May 4, 2026 •History In the United States, Cinco de Mayo has—unfairly—been reduced to an excuse to drink tequila and eat guac. It’s a familiar and festive ritual (and listen, I like guac and tequila too), but it gives short shrift to what the day actually represents: It’s not a party but a battlefield victory—one that mattered a great deal to the still-young Mexican republic. Today in History is a daily newsletter from Britannica. Encyclopædia Britannica, Inc. Want to...

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