Joseph S. Rich has written: 'Some notes on the telegraph companies of the United States' -- subject(s): Telegraph stamps, Telegraph
One of the first was a remote switch called a relay in 1835 by Joseph Henry. It was part of a telegraph and later used in the telephone.
1894 1894
not once, but twice.
In 1838 Samuel Morse perfected Joseph Henry's invention of the electromagnet. It was not until 1843 that the government funded a telegraph graph line from Washington to Baltimore.
While most textbooks credit Samuel F.B. Morse (1791-1872) with inventing the telegraph, there were actually several other inventors working on it at the same time. Some historians credit Alfred Vail with important work on the telegraph, while others also credit Joseph Henry. There is scholarly consensus that while Morse took much of the credit for himself and certainly had the ultimate success with transmitting messages by telegraph, the contributions of Vail, Henry, and several others made that success possible.
Joseph Henry was an American scientist born the 17th of December of 1797. He discovered the electromagnetic phenomenon of self-inductance and developed the electromagnet. His work and studies where the basis of the Electrical Telegraph, invented years later by Samuel F. B. Morse.
The Invention of the Telegraph by Joseph Henry in 1831 led to the invention of the phone.
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While most textbooks credit Samuel F.B. Morse (1791-1872) with inventing the telegraph in the late 1830s, there were actually several other inventors working on it at the same time. Some historians credit Alfred Vail with important work on the telegraph, while others also credit Joseph Henry. There is scholarly consensus that while Morse took much of the credit for himself and certainly had the ultimate success with transmitting messages by telegraph, the contributions of Vail, Henry, and several others made that success possible.Read more: http://wiki.answers.com/Inventor_of_the_Telegraph#ixzz1LRDiG178
Joseph Henry. He did not patent it though, and Samuel Morse stole his idea and patented it.
Saint Joseph was a carpenter.