Monday, June 6, 2016

What Does the "D" in D-Day Stand For?

From the National World War II Museum.

Many people entering the museum thing the "D" stands for "designated Day," "Decision Day," "Doomesday" or even "Death Day."  Stephen Ambrose's "D-Day June 6, 1944: The Climatic Battle of World War II says that according to Time magazine, the first recorded use of the term was used during World War I, when the A.E.F. Field Order No. 8 said, "The First Army will attack on H-Hour on D-Day" in an attempt to break the salient at St. Mihiel.

D-Day stands for "Day."  Days before D-Day are designated with negative signs, so D-4 would mean 4 days before D-Day.  Days afterwards are show with a plus sign.  So D+7 would mean seven days after D-Day.


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