<Tr> <Th> Occupation </Th> <Td> Inventor </Td> </Tr> <Tr> <Th> Known for </Th> <Td> Invention of a ticker tape, gold and stock tickers, multiplex telegraph system </Td> </Tr> <P> 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 . </P> <P> 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 . </P>

Who invent the first stock tricker in 1867