Word Study
black friday
CIDE DICTIONARY
black friday,
Any Friday on which a public disaster has occurred, as: In England, December 6, 1745, when the news of the landing of the Pretender reached London, or May 11, 1866, when a financial panic commenced. In the United States, September 24, 1869, and September 18, 1873, on which financial panics began. [Webster 1913 Suppl.]
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