History of Ships and Boats

Ships and Boats Timeline

SOS - international distress signal

1906

SOS, which replaced the call sign CDQ as a distress signal, was first agreed upon by the International Radio Telegraphic Convention in 1906. It was a distinctive Morse code sequence, which later in popular usage became associated with the mnemonic phrase "Save Our Souls". 

Floral Flourish Design A 3, by GDJ
from Local (local)
Floral Flourish Design A 3, by GDJ

SOS - international distress signal

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