Statistics for occurrence #1 of “Sabine River” in entry state-of-texas of Harper's Encyclopedia of United States History:

...isiana to the United States a controversy arose about its western boundary, which was amicably settled, in 1806, by General Wilkinson and the Spanish commander, establishing the territory between the Sabine River and Arroya Honda as neutral ground. In 1806 revolutionary movements, incited by those of Aaron Burr (q. v.), began in that region, and many skirmishes and battles occurred, chiefly by invasions of ...
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