About Edward A. Calahan
Lived 1838 – 1912 (aged 73–74). Edward A. Calahan was an American inventor.
Edward Augustin Calahan (1838–1912) was an American inventor, credited with invention of a ticker tape, gold and stock tickers, and a multiplex telegraph system.
Calahan was born in Boston, Massachusetts. He left school at the age of 11 to pursue his interest to be part of a modern business.
Calahan came to New York in 1861 and made his residence in Brooklyn. With the idea, he invented the ticker tape in 1867. After many years of work he started the company ADT security, which still stands today. He was inducted to the National Inventors Hall of Fame in 2006 for this invention.
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Frequently asked questions
Who was Edward A. Calahan?
American inventor
When was Edward A. Calahan born?
Edward A. Calahan was born in 1838 in Boston.
When did Edward A. Calahan die?
Edward A. Calahan died in 1912 in Brooklyn.
What was Edward A. Calahan's occupation?
Edward A. Calahan was an inventor.
What nationality was Edward A. Calahan?
Edward A. Calahan was American.
Sources & further reading
· Wikipedia: Edward A. Calahan
Cite this page
APA: Biography.guide. (2026). Edward A. Calahan. https://biography.guide/edward-a-calahan/
MLA: "Edward A. Calahan." Biography.guide, https://biography.guide/edward-a-calahan/.
Chicago: "Edward A. Calahan." Biography.guide. https://biography.guide/edward-a-calahan/.
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