1867: First stock ticker debuts


On November 15, 1867, the first stock ticker is unveiled in New York City. The advent of the ticker ultimately revolutionized the stock market by making up-to-the-minute prices available to investors around the country. Prior to this development, information from the New York Stock Exchange, which has been around since 1792, traveled by mail or messenger.

The ticker was the brainchild of Edward Calahan, who configured a telegraph machine to print stock quotes on streams of paper tape (the same paper tape later used in ticker-tape parades). The ticker, which caught on quickly with investors, got its name from the sound its type wheel made.

Wikipedia https://en.wikipedia.org/wiki/Ticker_tape?wprov=sfti1

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