U.S. Department of the Interior(@Interior):239 years ago today, our Founding Fathers signed the Constitution at Independence Hall in Philadelphia. 🇺🇸 On Constitution Day, we honor the enduring document that established the framework for our system of self-government and remains the foundation of our Republic.

U.S. Department of the Interior

@Interior

Stewarding Conservation and Powering Our Future. For News and Policy: @InteriorPress47.

参加 September 2009

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U.S. Department of the Interior@Interior

2026.09.17 13:02

239 years ago today, our Founding Fathers signed the Constitution at Independence Hall in Philadelphia. 🇺🇸 On Constitution Day, we honor the enduring document that established the framework for our system of self-government and remains the foundation of our Republic.