On what date did Black Tuesday, the most notorious trading day of the 1929 crash, occur?

Black Tuesday, the most notorious trading day of the 1929 crash, occurred on October 29, 1929.

On that day, investors sold millions of shares on the New York Stock Exchange amid rapidly worsening fear. The selling followed Black Thursday on October 24 and a temporary market recovery attempt on the following trading days. By the end of October 29, the Dow Jones Industrial Average had fallen about 12 percent.

Black Tuesday is often described as the symbolic climax of the Wall Street Crash of 1929, although the market continued to decline after that date. The Dow eventually reached a much lower level in July 1932, losing almost 89 percent from its 1929 peak.

Black Thursday is the most common date confused with Black Tuesday. Black Thursday was October 24, when exceptionally heavy selling was partly checked by intervention from major bankers. The two days were separate episodes within the same crash.