Of course, most would say April 9, 1865 with the surrender of General Robert E. Lee at Appomattox Courthouse in Virginia.
Others would not agree. The last federal officer killed in the war was 1st Lt. E. L. Stevens, who was just one of several casualties of the 54th Massachusetts Volunteer Infantry at the Battle of Boykins Mills, SC, fought on April 18, 1865.
The C.S.S. Shenandoah, under the jurisdiction of Lt. Commander James Waddell, continued to pursue and capture Union ships at sea. It did not officially surrender until November 6, 1865.’
Still others would argue vehemently that the hostilities continued even long after that. Virginia, Mississippi, Texas and Georgia were not readmitted into the Union until 1870.
Even as late as 1880, politicians seem to be still fighting the war. Federal laws were still discriminatory to the advantage of the "winners", with Union soldiers who had lost a limb in the war receiving $432 per year in benefits, while Confederate veterans in the same condition received only $50 per year.
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