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In 550 B.C., the Postal Service was invented in multiple countries and empires (not in the United States obviously because it did not exist yet.
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Although it was not electric, the invention of the telegraph was a huge step for people when it comes to communication.
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Instead of using letters and words, Morse code was invented by creating a method including sequences and signals.
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Alexander Graham Bell had created another leap forward with the telephone. Now, messages can be sent more vocally and instantaneously
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1 year after the telephone, radios were invented to not have people talk back and forth, but have one person give the news around the area to people in the city.