Today in History: September 17, U.S. Constitution signed
On September 17, the United States marks the anniversary of when the Constitution was signed in 1787. The Constitution is the foundational document that established the framework for the U.S. government and defined the rights of its citizens. Today's observance highlights this significant moment in American history.
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National story. 7 articles from 6 sources. Updated Sep 17, 2026.
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Today in History: September 17, U.S. Constitution signed