1837
Dr. David Alter invented the telegraph during the year of 1836, although Samuel Morse made several key developments in the invention.
china
Many early telegraph cables were made of iron wire, but all modern ones are copper.
telegraph
1844
1809
The telegraph was invented by Samuel Morse in the 1830s. Morse developed the system of dots and dashes known as Morse code to transmit messages over long distances using electrical signals sent along telegraph wires. The first telegraph line in the United States was completed in 1844 between Washington D.C. and Baltimore.
In the UK, The Telegraph can be purchased for 4 pounds per issue. The Telegraph also offers print subscriptions for 364 pounds per year and a digital subscription for 20 pounds per year.
Italy
It made music.
Mistake
HOW THEY MADE A MORSE CODE MACHINE Samuel F.B. Morse and Alfred Vail developed an electric telegraph which sent pulses of electrical current to control an electromagnet that was located at the receiving end of the telegraph wire.