Answer:The telegraph was invented by Samuel Morse in 1844, and telegraph wires soon sprang up all along the East Coast. During the war, 15,000 miles of telegraph cable was laid purely for military purposes. Mobile telegraph wagons reported and received communications from just behind the frontline. President Lincoln would regularly visit the Telegraph Office to get the latest news. The telegraph also enabled news sources to report on the war in a timely fashion, leading to an entirely new headache for the government: how to handle the media.
I would say yes, the goals and objectives of the constitution are still relevant today. When the constitution says, "Establish Justice", it is implying they want to set up a legal system fair to all, which indeed is very important today. It also ensures domestic tranquility, which protects us all from unlawful acts. Lastly, it provides us common defense, which is protection from other countries