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Ancient Signals and Lost Codes
Explore the intriguing world of forgotten communication methods through this crossword featuring ancient and obsolete ways people once exchanged messages.
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Across
  • 1. Communication using puffs of smoke visible from afar
  • 5. One of the earliest known writing systems on clay tablets
  • 7. Code made of dots and dashes used in telegraphy
  • 8. Gunfire signals once used to alert or communicate
Down
  • 2. Bird historically used to carry messages across distances
  • 3. Device that signals by reflecting sunlight with mirrors
  • 4. Term for messenger or message bearer, often human or animal
  • 6. Beat-based communication method used by some indigenous cultures
  • 9. Visual signaling with flags or arms from a distance

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