Black Friday (shopping) the holiday season, beginning on the day after Thanksgiving. When this was recorded in the financial records, once-common accounting practices would use red ink to show negative amounts and black ink to show positive amounts. Black Friday, under this theory, is the beginning of the period when retailers would no longer be "in the red", instead taking in the year's profits. The earliest known published reference to this explanation occurs in "The Philadelphia Inquirer" for November 28, 1981. In 2013, an internet rumor alleged that the phrase originated in the American south before the Civil War, from the practice of
Black Friday (1978) guerrillas in Iran, who some believe were agitators. Black Friday is thought to have marked the point of no return for the revolution, and it led to the abolition of Iran's monarchy less than a year later. It is also believed that Black Friday played a crucial role in further radicalizing the protest movement, uniting the opposition to the Shah and mobilized the masses. Initially, opposition and western journalists claimed that the Iranian army had massacred thousands of protesters. The clerical leadership announced that "thousands have been massacred by Zionist troops". The events triggered protests that continued for another four