Abraham Lincoln's Thanksgiving Day Proclamation of October 3, 1863 (Presidential Proclamation 106). On October 3, 1863, President Lincoln made the traditional Thanksgiving celebration a nationwide holiday to be commemorated each year on the last Thursday of November. In the midst of a bloody Civil War, President Lincoln issued a Presidential Proclamation in which he enumerated the blessings of the American people and called upon his countrymen to “set apart and observe the last Thursday of November next, as a day of Thanksgiving and Praise.” Page 1. (Photo credit: U.S. National Archives and Presidential Libraries) Read full text