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The wigwag system was invented in the 1850s by US Army surgeon Albert J. Myer who became the first Chief Signal Officer of the US Army in command of the Signal Corps. Wigwag was used extensively by both sides in the American Civil War , where it was an essential adjunct to electrical telegraphy , and continued to see use in both America and ...
He invented a signaling system using a flag (or a kerosene torch for nighttime use) that is known as wig-wag signaling, or aerial telegraphy. Unlike semaphore flag signaling , which employed two flags, signal wig-wag required only one, using a binary code to represent each letter of the alphabet or digit.
Albert James Myer (September 20, 1828 – August 24, 1880) was a surgeon and United States Army general. He is known as the father of the U.S. Army Signal Corps, as its first chief signal officer just prior to the American Civil War, the inventor of wig-wag signaling (or aerial telegraphy), and also as the father of the U.S. Weather Bureau.
The Magnetic Signal Company was an American company based in Los Angeles, California, focused on railway signalling. The company was the manufacturer of the ubiquitous "Magnetic Flagman" wigwag railroad crossing (or level crossing ) signal, seen all over California and the western states.
Signals were replaced by more modern devices in 1973. Although many wig wags are still used by heritage railroads and railroad museums, there are only 14 railroad crossings with at least one wigwag remaining in use for regular railroads in the United States as of 2022. All 14 are in California.
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While serving as a medical officer in Texas in 1856, Albert James Myer proposed that the Army use his visual communications system, called aerial telegraphy (or "wig-wag"). When the Army adopted his system on 21 June 1860, the Signal Corps was born with Myer as the first and only Signal Officer. [3] Click photo to enlarge for history of the wigwag.