The TELEGRAPH A description of various telegraph systems written primarily by Thomas A. Edison as published in Appletons' Cyclopaedia of Applied Mechanics in 1880.
http://www.telegraph-history.org/edison/appletons/index.html
In 1877, Thomas A. Edison was asked to update the section on the Telegraph for Appleton's Cyclopaedia of Applied Mechanics. At this point in his career, Edison was a respected telegraph inventor and former telegrapher. He submitted his article in the spring of 1878 when he was 31 and it was published in Appletons' 1880 edition.
http://www.telegraph-history.org/edison/appletons/index.html
At the end of the section it credits, T.A.E. in part, but, the majority of the section as published follows Edison's manuscript.* Edison is the only person listed for the Telegraph on the page listing contributors. The section is shown below with enlarged images.
http://www.telegraph-history.org/edison/appletons/index.html
A marker was moved to produce written code on a piece of paper using pulses of current to deflect electromagnet-this was Morse code. For one more year the machine was worked on to emboss the paper with dots and dashes and then the public demonstration was conducted in 1838.
http://www.whoinvented.org/who-invented-telegraph/
The first transcontinental. telegraph line was built by the Western Union along the railroads in 1851 and then theys began their profits. For economic reasons, the Post and Telegraph department intervened in 1881 and it was in 1943 that the Post and Telegraph department and the Western Union joined hands.
http://www.whoinvented.org/who-invented-telegraph/
At first, telegraph messages were transmitted by trained code users, but in 1914 a form of automatic transmission was developed. This made the message transmission much faster. At the turn of the 20th century, all long-distance communication depended heavily on the telegraph. In 1864, top telegraph company Western Union operated on 44,000 miles of wire and was valued at $10 million. Within the next year, its worth had jumped to $21 million.
http://www.elon.edu/e-web/predictions/150/1830.xhtml
Then in 1833 Carl Gauss and Wilhelm Weber created a telegraph that was able to send messages as far as one kilometer. In America similar versions were attempted but none took off. It wasn't until 1837 when Samuel Morse developed a new version of the telegraph.
http://www.createqrcodes.net/telegraph.html
In 1843, Morse built a telegraph system from Washington, D.C., to Baltimore with the financial support of Congress. On May 24, 1844, the first message, “What hath God wrought?” was sent. The telegraph system progressed slowly, and many attempts failed to make the system work for the entire country.
http://www.elon.edu/e-web/predictions/150/1830.xhtml
World Changes Due to the Telegrap h. Prior to the telegraph, communication in the 1830s was about the same as it had been in the years just after Gutenberg's invention of the printing press. It took days, weeks, and even months for messages to be sent from one location to a far-flung position.
http://www.elon.edu/e-web/predictions/150/1830.xhtml
Samuel F. B. Morse invented the first telegraph in 1837. Before Morse many inventors tried and worked on the same but the first practical instrument that could send telegraph using electricity successfully was designed by him. Samuel Morse was a professor of art and design at New York University in 1835. He became interested in telegraphic device in 1832 and started working on it. For the samehe took technical assistance from Leonard Gale, a chemistry professor and monetary support from Alfred Vail.
http://www.whoinvented.org/who-invented-telegraph/
who created the telegraph and when
Samuel F. B. Morse invented the first telegraph in 1837.