Morse code is a method of encoding text characters using a series of dots and dashes. Each letter of the alphabet and each numeral is represented by a unique combination of these signals. It was developed in the early 1830s and 1840s by Samuel Morse and Alfred Vail for use in telegraphy. Originally used for long-distance communication, Morse code can be transmitted in various ways, including sound, light, and visual signals. It remains a valuable tool in certain fields, such as aviation and amateur radio, where it can be used to convey messages even in challenging conditions.