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  A 12-foot-high wood stockade is erected across lower Manhattan from river to river to protect Dutch settlers from attacks by the British and Indians.
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  Surveyors lay out Wall Street along the line of the stockade.
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  The federal government refinances all federal and state Revolutionary War debt, issuing $80 million in bonds. These become the first major issues of publicly traded securities, marking the birth of the U.S. investment markets.
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  24 merchants from New York met under a Buttonwood tree to form the New York Stock Exchange. The stock exchange building was located at 11 Wall St. in New York City.
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  The Great Fire destroys over 700 buildings in lower Manhattan. The NYS&EB moves to temporary headquarters.
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  The telegraph is invented, broadening market participation by facilitating communication with brokers and investors outside New York City
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  With the outbreak of the Civil War the NYS&BE suspend trading in seceding states.
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  The New York Stock & Exchange Board becomes the New York Stock Exchange (NYSE).
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  The stock market is closed for two weeks following the death of President Lincoln.
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  Invented by Edward A. Calahan, the stock ticker revolutionizes the stock market by bringing current prices to investors everywhere.
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  On September 24, gold speculation resulted in "Black Friday."
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  The New York Stock Exchange Clearing House is organized to centralize and expedite the transfer of securities from broker to broker.
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  The NYSE moves to their current location at 18 Broad Street.
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  WWI causes securities exchanges around the world suspend operations to stop plunging prices. The NYSE closes its doors and doens't open for 4 and a half months.
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  After the Civil War ended the securities market began to grow in New York. Government bonds, banks and insurance stocks trade now.
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  Five days later, the market crashes on a level that wouldn't be surpassed for 39 years. It becomes known as the Great Depression.
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  Muriel Siebert becomes the first woman member of the Exchange.
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  The NYSE is incorporated as a not-for-profit corporation.
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  Foreign brokers are admitted to NYSE.
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  DJIA exceeds 10,000.