September 1, 1807
Former U.S. Vice President Aaron Burr is acquitted. Burr was charged with treason for plotting to annex parts of Louisiana and Spanish territory in Mexico to be used toward the establishment of an independent republic. Though he admitted to conspiring against the U.S., he claimed he was innocent of the charge of treason because he didn't engage in an "overt act".
In our collection:
Aaron Burr, The trial of Col. Aaron Burr, on an indictment for treason, before the Circuit Court of the United States, held in Richmond, (Virginia), May term, 1807, including the arguments and decisions on all the motions made during the examination and trial, and on the motion for an attachment against Gen. Wilkinson, taken in short-hand by T. Carpenter (Washington, D.C.: Westcott & Co., 1807-08).