Communications Crossword

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Across
  1. 4. Increased interconnectedness of cultures
  2. 5. Used horses for communication (2 words seperated by dash)
Down
  1. 1. Served as a vital land route for communication and economics
  2. 2. Used to send and receive electrical signals
  3. 3. Provided a more efficient way of transportation and communication
  4. 6. System used by the Mongols