Black Friday 2011

JANUARY 1966 -- "Black Friday" is the name which the Philadelphia Police Department has given to the Friday following Thanksgiving Day. It is not a term of endearment to them. "Black Friday" officially opens the Christmas shopping season in center city, and it usually brings massive traffic jams and over-crowded sidewalks as the downtown stores are mobbed from opening to closing.
The term Black Friday began to get wider exposure around 1975, as shown by two newspaper articles from November 29, 1975, both datelined Philadelphia. The first reference is in an article entitled "Army vs. Navy: A Dimming Splendor," in The New York Times:
Philadelphia police and bus drivers call it "Black Friday" - that day each year between Thanksgiving Day and the Army–Navy Game. It is the busiest shopping and traffic day of the year in the Bicentennial City as the Christmas list is checked off and the Eastern college football season nears conclusion.
The derivation is also clear in an Associated Press article entitled "Folks on Buying Spree Despite Down Economy," which ran in the Titusville Herald on the same day: