23h 4min, jun 29, 1766 y - The Declaratory act asserted the right that Parliament pass blinding laws on the Colonist. This was important because since the Colonist didn't like taxation without representation, and Parliament just said the opposite of that, the Colonist don't appreciate that, so, they just got another reason to start a Revolution.
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Date:
23h 4min, jun 29, 1766 y
Now
~ 260 years ago