Samual F. B. Morse was a successful businessman and a presidential portraitist. But above all else, he is best remembered for his eponymous Morse …
Morse Code, Whistled Languages and More: 6 Unique Forms of Communication
Communication doesn't always involve words or even sound at all. From Morse code and an ancient knot language, to whistled languages and Aviation English, learn about six unique forms of communication and their history.