The invention of the telegraph and telephone helped improve the standard in the United States by making the lives of the citizens more easier and efficient. The telegraph was a machine that send messages to places from long distances. The telephone is a machine that transmits sound to another device. The telegraph and telephone helped improve the living standards by helping people send messages and audio to places from long distances, so the person doesn't have to send a letter that could take days for the person to receive. It made the lives of the people in the United States a lot easier.
I don't know the answer but try reading this:
https://www.history.com/topics/1960s/robert-f-kennedy
It should help give you information.
Good Luck!!
The answer is: It supplied the north with raw materials
The music and musical instruments are used to express
national identity in Europe with the use of the styles that they used and
create in a way of representing their culture and their identity in means of
showing their identity throughout the world and one example of this is their
music.
