Answer:
Indus River Valley
Explanation:
Modern day Punjab and Sindh provinces were proven to be the Indus's two largest cities : Harappa and Mohenjo-daro
Answer: The invention of the telegraph is credited to the English inventors William Cooke and Charles Wheatstone as well as the American inventors Samuel Morse, Alfred Vail and Leonard Gale. The telegraph allowed for long-distance communication by sending messages between devices by means of an electric current.
It was necessary to win the war because the south wanted to separate and that would make the south and north both weak also the south wanted slave but the north didnt
