Signal the keywords and learn a bit about telegraphs during the civil war.
Type what the beeps say to learn more about telegraphs during the civil war.
Use ERROR to delete the last word.
Sean Yen, 7°

Christies. “Samuel Morse with His Recorder.” Wikimedia Commons, Accessed 23 May 2017.

“Electromagnetic Telegraph.” Edubilla, Accessed 23 May 2017.

Gardner, Alexander. “Plate 73. U.S. Military Telegraph Battery Wagon.” National Museum of American History, Smithsonian, Accessed 22 May 2017.

Hochfelder, David. “The Telegraph.” Essential Civil War Curriculum, Virginia Tech, Accessed 22 May 2017.

Hydrargyrum. “SOS Morse Code.” Wikimedia Commons.

Ilikelegos. “Morse Code (100% Pen).” Scratch, MIT, 11 Feb. 2017, Accessed 23 May 2017.

“International Morse Code.” The Art of Manliness, Accessed 22 May 2017.

Kent, Robert. “Calculating Morse Code Speed.” KENT Morse Keys, R. A. Kent Engineers, Accessed 22 May 2017.

“Map of U.S. Military Telegraph Lines, 1885.” U.S. Army Center Of Military History, Accessed 23 May 2017.

Mountjoy, Shane. Technology and the Civil War. New York, Chelsea House Publishers, 2009.

Phillips, Stephen C. “International Morse Code.” Stephen C Phillips, Accessed 22 May 2017.

Sauerberg, Jim. “Route Ciphers in the Civil War.” Mathematics Awareness Month, JPBM, Accessed 22 May 2017.

“The US Civil War, the First Modern War.” Æ Aeragon, Accessed 22 May 2017.

“Telegraph Wagon.” Jalopnik, Gizmodo Media,,f_auto,fl_progressive,q_80,w_800/18bw9gbihsu8djpg.jpg. Accessed 23 May 2017.

“Western Union 22-A Telegraph Relay.” Telegraph, Scientific Instrument & Radio Museums, Accessed 23 May 2017.