It has pleased Almighty God to prolong our national life another year, defending us with His guardian care against unfriendly designs from abroad and vouchsafing to us in His mercy many and signal victories over the enemy, who is of our own household. It has also pleased our Heavenly Father to favor as well our citizens in their homes as our soldiers in their camps and our sailors on the rivers and seas with unusual health. He has largely augmented our free population by emancipation and by immigration, while He has opened to us new sources of wealth and has crowned the labor of our workingmen in every department of industry with abundant rewards. Moreover, He has been pleased to animate and inspire our minds and hearts with fortitude, courage, and resolution sufficient for the great trial of civil war into which we have been brought by our adherence as a nation to the cause of freedom and humanity, and to afford to us reasonable hopes of an ultimate and happy deliverance from all our dangers and afflictions:
Now, therefore, I, Abraham Lincoln, President of the United States, do hereby appoint and set apart the last Thursday in November next as a day which I desire to be observed by all my fellow-citizens, wherever they may then be, as a day of thanksgiving and praise to Almighty God, the beneficent Creator and Ruler of the Universe. And I do further recommend to my fellow-citizens aforesaid that on that occasion they do reverently humble themselves in the dust and from thence offer up penitent and fervent prayers and supplications to the Great Disposer of Events for a return of the inestimable blessings of peace, union, and harmony throughout the land which it has pleased Him to assign as a dwelling place for ourselves and for our posterity throughout all generations.
In testimony whereof I have hereunto set my hand and caused the seal of the United States to be affixed.
Done at the city of Washington, this 20th day of October, A.D. 1864, and of the Independence of the United States the eighty-ninth.Lincoln's successors followed the practice of proclaiming the last Thursday of November to be Thanksgiving Day. In 1939 (as in 2012), however, November had five Thursdays. To lengthen the Christmas shopping season and boost the still-struggling economy, FDR proclaimed Thanksgiving to be the second-to-last Thursday, November 23 instead of November 30. The move was controversial as many organizations (including calendar manufacturers) had already planned on the later date. The FDR Library picks up the story:
As opposition grew, some states took matters into their own hands and defied the Presidential Proclamation. Some governors declared November 30th as Thanksgiving. And so, depending upon where one lived, Thanksgiving was celebrated on the 23rd and the 30th. This was worse than changing the date in the first place because families that lived in states such as New York did not have the same day off as family members in states such as Connecticut! Family and friends were unable to celebrate the holiday together.
Franklin Roosevelt observed Thanksgiving on the second to last Thursday of November for two more years, but the amount of public outrage prompted Congress to pass a law on December 26, 1941, ensuring that all Americans would celebrate a unified Thanksgiving on the fourth Thursday of November every year.Here is President Obama's 2012 Thanksgiving message: