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In June of 1788 after New Hampshire ratified.

That was the date it was ratified, but the Constitution was actually officially ratified on March 4, 1789. :)

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14y ago
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schockemma

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4y ago

The United States Constitution took effect (was ratified) on June 21, 1788. It was officially signed on September 17, 1787 but could not fully take effect until at least 9 of the 13 colonies ratified the document.

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12y ago

March 4, 1789

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Q: The US Constitution went into effect on what date?
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