Black Tuesday: The <a href="https://en.wikipedia.org/wiki/New_York_Stock_Exchange" id="mwjQ" rel="mw:WikiLink" title="New York Stock Exchange">New York Stock Exchange</a> <a href="https://en.wikipedia.org/wiki/Wall_Street_Crash_of_1929" id="mwjg" rel="mw:WikiLink" title="Wall Street Crash of 1929">crashes</a>, ending the Great Bull Market of the 1920s and beginning the <a href="https://en.wikipedia.org/wiki/Great_Depression" id="mwjw" rel="mw:WikiLink" title="Great Depression">Great Depression</a>.