When exactly was the Committee on Public Information (CPI) established?

Executive Order 2594 - Creating Committee on Public Information
April 13, 1917

"I hereby create a Committee on Public Information, to be composed of the Secretary of State, the Secretary of War, the Secretary of the Navy, and a civilian who shall be charged with the executive direction of the Committee.

As Civilian Chairman of this Committee, I appoint Mr. George Creel. The Secretary of State, the Secretary of War, and the Secretary of the Navy are authorized each to detail an officer or officers to the work of the Committee.

WOODROW WILSON
THE WHITE HOUSE,
April 13, 1917."

--Woodrow Wilson: "Executive Order 2594 - Creating Committee on Public Information," April 13, 1917. Online by Gerhard Peters and John T. Woolley, The American Presidency Project.


'Creel ... reported the creation date of the CPI as April 14, 1917. The Sundry Civil Appropriations Bill for 1919 contains a reading of the executive order creating the CPI; also dated April 1914. Mock and Larson [see] and  [Stephen]Vaughn [see] reported the creation to be April 13, 1917. April 14 is reported as the creation date in this article due to the corroboration of Creel and information contained in Sundry Appropriation Bill

--Bruce Pinkerton, “The Campaign of the Committee on Public Information: Its Contributions to the the History of Evolution of Public Relations,” Journal of Public Relations Research, 6 (4), p. 230


"From the outset President Wilson recognized the necessity for a central propaganda agency in this country. On April 14, 1917, just eight days after war was declared, he created by, executive order, the Committee on Public Information."

--George G. Bruntz, Allied propaganda and the collapse of the German Empire in 1918, p. 31, citing Woodrow Wilson's State Papers and Addresses (New York, 1918) pp. 273 ff.