It is a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
c) What was an impact?
The invention of the telegraph did make the world a lot smaller. It help send information across the country faster than any vehicle. The government also used the invention for military purposes too. The government used this to send information and secret messages to other cities such as the capital during wars.
Over the last 20-25 years there has been many terist attacks around the around the world like 9/11 the bombing of Pearl Harbor and many more but now we have not seen or heard of any terist but they did catch some so in my opinion it reduced.
