Charles Francis Adams Sr. was an American historical editor, writer, politician, and diplomat. As United States Minister to the United Kingdom during the American Civil War, Adams was crucial to Union efforts to prevent British recognition of the Confederate States of America and maintain European neutrality to the utmost extent. Adams also featured in national and state politics before and after the Civil War.

The Confederate States of America (CSA), commonly referred to as the Confederate States (C.S.), the Confederacy, or the South, was an unrecognized breakaway republic in the Southern United States that existed from February 8, 1861, to May 9, 1865. The Confederacy comprised eleven U.S. states that declared secession and warred against the United States during the American Civil War. The states were South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Virginia, Arkansas, Tennessee, and North Carolina.