But where does the term black friday come from? Before it referred to the start of the holiday shopping season, black friday was a financial stock market fiasco in 1869, when all matters of financial transactions were experiencing difficulty. I'm no economics guru, but in literature, black typically signifies darkness, or evil. This seems to be an appropriate application of metaphor to the 1869 financial crisis. Shortly after, black friday began to refer to the traffic surrounding the travel homeward the day after thanksgiving. In terms of accounting, black ink typically refers to profit, or the amount of money that is saved, whereas red represents money that is owed, or not present in the account, such as an overdraft. In the mid to late 60s, black friday combined the accounting definition of black with the crowded element to come to its current meaning. The 60s marked the stages of early infancy for the triumvirate of radio, television, and print advertising, and so it seems logical that retail services would peak at mass hysteria at this time.