I really need help, I'm busy with tests for my other classes and I'd really appreciate it if someone could do this for me. *Will mark brainliest!* Based on what you learned in Civil War technology research, which weapon or invention was the most effective both during the war and in the long term?
(Your answer should be 7 to 10 sentences long.)

The message was created by Samuel Morse in 1844, and transmit wires before long jumped up and down the East Coast. During the war, 15,000 miles of transmit link was laid only for military purposes. Versatile message carts announced and got interchanges from simply behind the forefront. President Lincoln would routinely visit the Telegraph Office to get the most recent news. The message additionally empowered news sources to write about the battle in an ideal style, prompting a totally new migraine for the public authority: how to deal with the media.