SOS - Save Our Souls
Save Our Souls, sometimes referred as "Save Our Ship", an in International Morse code Signal. It signals that a person is in danger and needs help to get him out of danger. It was first adopted by German government on April 1, 1905 in radio regulations, and became the worldwide standard.
Representation of SOS
The signal is expressed as "… — — — …" (three dots, three dashes, three dots, without letter spacing) in International Morse code. 3 dots comprise the letter 'S', and 3 dash the letter 'O'. It therefore soon became common to refer to the distress signal as "SOS." These letters were selected because they are easy to transmit.