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Remove 4 letters from this seq...

Remove 4 letters from this sequence (IQOQUESTIAON) to reveal a familiar English word.

Correct answers: 49

The first user who solved this task is Nílton Corrêa De Sousa.

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SOS

In 1904, the code “CQD” became effective as the first international radio distress signal. It was established on 7 Jan 1904 by the Marconi Company. “CQ” had been in use on English landlines as a code for a general call to “all stations.” The “D” was added to made the code for a distress call. It didn't last long. Two years later, “SOS” was specified in a document signed on 3 Nov 1906at the second International Wireless Telegraph Convention in Berlin, by representatives of 27 nations. “SOS” was to supercede “CQD” effective in Jul 1908.

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