Which of the following is not a medium of communication developed prior to the twentieth century?

Name: Which of the following is not a medium of communication developed prior to the twentieth century?
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Question

Quizplus · Accepted Answer

The Internet was developed in the latter half of the twentieth century and did not exist prior to that time. The telegraph, newspapers, and phonograph were all developed in the nineteenth century or earlier and were widely used methods of communication.

Which of the Following Is Not a Medium of Communication