History of Black Friday
Black Friday usually falls on the last Friday of November. At the same time, it is the first Friday after Thanksgiving Day. In a way, the day acts as the start of Christmas shopping, due to the large promotions that stores and companies prepare on this occasion. There is no doubt that it is primarily an extremely commercial "holiday" focused on shopping.
Black Friday has its origins in Philadelphia, when police described with these words a crowd of people gathered from the start because of large, pre-Christmas shopping. However, the next mention of the subject did not appear until November 29, 1975, in The New York Times magazine.