The Confederate States celebrate for the first and only time a Thanksgiving Day.

The Confederate States of America (CSA), also known as the Confederate States (C.S.), the Confederacy, or the South, was an unrecognized breakaway republic in the Southern United States from 1861 to 1865. It comprised eleven U.S. states that declared secession: South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Virginia, Arkansas, Tennessee, and North Carolina. These states fought against the United States during the American Civil War.

Thanksgiving is a national holiday celebrated on various dates in October and November in the United States, Canada, Saint Lucia, Liberia, and unofficially in countries like Brazil and Germany. It is also observed in the Australian territory of Norfolk Island. It began as a day of giving thanks for the blessings of the harvest and of the preceding year. Various similarly named harvest festival holidays occur throughout the world during autumn. Although Thanksgiving has historical roots in religious and cultural traditions, it has long been celebrated as a secular holiday as well.

September 18 is the 261st day of the year in the Gregorian calendar; 104 days remain until the end of the year.