Morse Code
Morse Code is a communication system that encodes letters, numbers, and punctuation into sequences of short and long signals, known as dits (·) and dahs (–). Developed by Samuel Morse and Alfred Vail in the 1830s–1840s, it was originally used for telegraph transmission but has since become a standard for signaling across many media. Each character in the plaintext is represented by a unique pattern of dots and dashes.