The Republic of Indian Stream or Indian Stream Republic was an unrecognized constitutional republic in North America, along the section of the border that divides the current Canadian province of Quebec from the U.S. state of New Hampshire. It existed from July 9, 1832, to August 5, 1835.
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Another was the republic of Madawaska with its own history.
Another was the republic of Madawaska https://en.wikipedia.org/wiki/Republic_of_Madawaska with its own history.