Black Tuesday

Từ điển Oxford Advanced Learner 8th

Black Tuesday [Black Tuesday] BrE BrE NAmE NAmE
(in the US) the name given to 29 October 1929, the day on which the ↑New York Stock Exchange lost $9 billion. It was the beginning of the ↑Great Depression. When another large loss occurred on 19 October 1987, the day was called Black Monday.