The question was asked where the term ” Black Friday” came from. I went to wikipedia and looked. Here is what it says:
The day’s name originated in Philadelphia, where it originally was used to describe the heavy and disruptive pedestrian and vehicle traffic which would occur on the day after Thanksgiving. Use of the term started before 1966 and began to see broader use outside Philadelphia around 1975. Later an alternative explanation began to be offered: that “Black Friday” indicates the point at which retailers begin to turn a profit, or are “in the black”.[
Thanks for the headache!