Black Thursday came first among the named 1929 Wall Street Crash days: it was October 24, 1929.
Trading that Thursday was extremely heavy, and the Dow Jones Industrial Average fell sharply in the morning. A group of major bankers later bought large blocks of leading shares, temporarily calming the market. That intervention did not solve the underlying problems, however, and selling resumed the following week.
Black Monday followed on October 28, and Black Tuesday came on October 29. The sequence is important because the crash unfolded over several sessions rather than being one isolated event. Black Tuesday is often remembered most vividly because of its enormous trading volume and the scale of the market’s losses.
The Wall Street Crash was connected to speculative buying, margin debt, and weakening economic conditions, but historians do not treat it as the sole cause of the Great Depression. Another frequent confusion is assuming “Black Thursday” happened after Black Tuesday; in the 1929 naming sequence, it was the earlier date.