Wall Street activity has produced a number of bubbles and panics. We can't include all of them, but below are a few of the more notable ones that are worth including:

• Panic of 1873: Railroads across the country were built and financed by companies and banks like the firm Jay Cooke and Company. The firm was heavily invested in railroad construction and when it closed its doors in September 1873, it triggered a major national economic panic.
• Panic of 1907: When "Copper King" F. Augustus Heinze and his brothers along with American Ice Company's "Ice King" Charles W. Morse, tried and failed to corner the market on the stock of United Copper, they triggered a panic on Wall Street that led to runs by depositors on the banks associated with these men including the Knickerbocker Trust Company.
• 1929 Stock Market Crash: During the 1920s the stock market went through a rapid expansion but at the same time unemployment rose and production declined leaving stock prices less valuable. October 24, 1929 (Black Thursday) marks the day of the largest sell-off of shares while October 29, 1929 (Black Tuesday) is when investors traded some 16 million shares on the New York Stock Exchange in a single day.
• Black Monday (1987): Beginning on October 14, 1987, the U.S. stock market began to sharply decline. On October 19 the Dow Jones Industrial Average dropped over 500 points followed by steep declines of the S&P 500, the New York Stock Exchange, and NASDAQ; eventually twenty-three major world markets experienced a sharp decline.