Sentence examples for electric telegraph from inspiring English sources
He was speaking in 1888, about the electric telegraph.
Samuel Morse's invention demonstrated the reliability of the electric telegraph between Baltimore, Maryland, and Washington, D.C.
Visual telegraphs were completely replaced by the electric telegraph by the middle of the 19th century.
British and French military engineers first used the electric telegraph in the Crimean War (1853 56).
He also conducted early investigations into the development and efficiency of the electric telegraph.
In the American Civil War (1861 65), wide use was made of the electric telegraph.
"To the press the electric telegraph is an invention of immense value," one journalist observed in 1868.
Gauss did important work in potential theory and, with the German physicist Wilhelm Weber, built the first electric telegraph.
President James Polk's declaration of war on Mexico, reported "by Electric Telegraph", appeared on the front page of the New York Herald on May 12th 1846, for example.
Before the development of the electric telegraph, visual systems were used to convey messages over distances by means of variable displays.
In Britain the Electric Telegraph Company was formed in 1845 to promote development of the needle telegraph system.
