Morse code was a code invented in 1838 that assigned each number and letter a unique sequence of short and long signals called "dots" and "dashes."
Before telephones were invented, the telegraph could send messages over long distances by using pulses of electricity to signal a machine to make marks on a moving paper tape.A code was needed to help translate the marks on the paper tape into text messages. Morse developed the first version of this code.
https://wonderopolis.org/wonder/why-was-morse-code-invented
Samuel F.B Morse and his friend Alfred Vail invented morse code in 1838. This was the first iteration of it.
Telegraph messages were sent by tapping out the code for each letter in the form of long and short signals. The code was converted into electrical impulses and sent over telegraph wires. A telegraph receiver on the other end of the wire converted the impulses back into dots and dashes, and decoded the message.
Morse Code was Patented in 1840 and invented in the United States.
There have not been many major changes to the technology except for a couple changes in the way you write the letters.
https://nrich.maths.org/articles/history-morse
Morse code significantly impacted people in the North and South during the American Civil War by giving the Union an advantage in communication and intelligence gathering, allowing them to react faster to military movements and figure out strategies more effectively than the Confederacy. This helped the Union's eventual victory.
Morse code created job opportunities for roles like radio operators, communication operators, and pilots and air traffic controllers, as it was the primary method of long-distance communication for many years
https://www.marylandpublicschools.org/about/Documents/Niederhauser.pdf
Morse code significantly changed the economy by allowing almost instant communication over long distances leading to faster business deals, better market agreements and quick information sharing, which ultimately led to increased trade and economic growth, particularly in the transportation and financial groups.
“Articles and Essays | Samuel F. B. Morse Papers at the Library of Congress, 1793-1919 | Digital Collections | Library of Congress.” The Library of Congress, 2015, www.loc.gov/collections/samuel-morse-papers/articles-and-essays/collection. Accessed 7 Mar. 2025.
Elon University. “1830s – 1860s: Telegraph – Imagining the Internet.” Elon University, 2005, www.elon.edu/u/imagining/time-capsule/150-years/back-1830-1860/.
“History of Morse | NRICH.” Maths.org, Oct. 2013, nrich.maths.org/articles/history-morse.
Niederhauser, Ruby . “What Hath God Wrought?”: The Effect of Morse Code and the Telegraph on American History.
Wonderopolis. “Why Was Morse Code Invented?” Wonderopolis.org, 19 Feb. 2018, wonderopolis.org/wonder/why-was-morse-code-invented.