Stumped by this Crossword Clue? Solve the Mystery of the 1906 Radiotelegraph Convention!

The answer to the crossword clue ‘Adoption of the International Radiotelegraph Convention in 1906 is SOS’ is MORSECODE. Morse code refers to a system of communication developed by Samuel Morse in the early 1830s. It uses a series of dots and dashes or short and long signals to represent letters and numbers. The International Radiotelegraph Convention, adopted in 1906, standardized the use of Morse code internationally for wireless telegraphy communication. SOS is a famous distress signal in Morse code, consisting of three short signals, followed by three long signals, and then followed by three short signals again. So, the clue suggests that the answer to the crossword is Morse code, which was adopted as the standard in the International Radiotelegraph Convention in 1906, and SOS is one of its well-known signals.