Black Friday (shopping) corner the gold market. When President Grant learned of this manipulation, he ordered the Treasury to release a large supply of gold, which halted the run and caused prices to drop by eighteen percent. Fortunes were made and lost in a single day, and the president's own brother-in-law, Abel Corbin, was ruined. The earliest known use of "Black Friday" to refer to the day after Thanksgiving occurs in the journal, "Factory Management and Maintenance", for November 1951, and again in 1952. Here it referred to the practice of workers calling in sick on the day after Thanksgiving, in order to
Black Friday (shopping) the first company to run a special Black Friday campaign for the German market in 2006. In the first years, mostly internet retailers have used the event as an occasion to attract new customers with discounts, but bricks and mortar stores have already begun to adapt the shopping event. For the first time ever, German customers spent more than €1 billion during the Black Friday weekend in 2016: According to a Centre for Retail Research study, German customers spend around €1.3 billion ($1.54 billion) during the four days from Black Friday to Cyber Monday 2016. In 2015, Swiss retailer Manor