This Day in History… August 17, 1861
On August 17, 1861, the first of several Civil War-era stamps was used for the first time.
In 1860 and 1861, eleven Southern states left the Union and formed the Confederate States of America, an action that resulted in the beginning of the Civil War. On April 12, 1861, the war erupted at Fort Sumter. Less than two months later, the United States discontinued postal services to the South.