Welp, now I know (thx to a trivia question that I looked up).
November 15, 1867, inventor Edward A. Calahan flicked on what would become the very first stock ticker, a telegraph-driven machine that printed the ups-and-downs of shares on long ribbons of paper-tape.
The “ticker” got its name from the clicking of its type‐wheel, and suddenly investors from coast to coast could track real-time pricing instead of waiting by mail.
Revolutionizing the New York Stock Exchange.
Before this machine, financial news traveled at the pace of a horse-drawn carriage or a messenger. After it? Instant feeds. It changed the rhythm of business, sped up markets, and laid one of the early tracks of our always-on financial world.
In 1886, ticker tape would find another use, in parades! It’s said that the first ticker tape parade was in NYC after a spontaneous celebration held on October 28, 1886.