The last Thursday in November is declared as Thanksgiving Day by U.S. President Abraham Lincoln.

Thanksgiving is a federal holiday in the United States celebrated on the fourth Thursday of November. Outside the United States, it is sometimes called American Thanksgiving to distinguish it from the Canadian holiday of the same name and related celebrations in other regions. The modern national celebration dates to 1863 and has been linked to the Pilgrims' 1621 harvest festival since the late 19th century. As the name implies, the theme of the holiday generally revolves around giving thanks and the centerpiece of most celebrations is a Thanksgiving dinner with family and friends.

Abraham Lincoln was the 16th president of the United States, serving from 1861 until his assassination in 1865. He led the United States through the American Civil War, defeating the Confederate States of America and playing a major role in the abolition of slavery.