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The telephone was invented in 1875 by Alexander Graham Bell. However, there is controversy whether  him or his partner should get the credit.  Graham had been previously been working on enhancing a telegraph when investors wanted him to try to transmit voices.
In 1876, he was granted a telephone patent and made his first phone call which sparked the beginnings of his company known today as AT&T.
Want to learn more? Go to history.com

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1946- The First Car Radiotelephone arrives

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1946- The First Car Radiotelephone arrives

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The first cell phone was made available to the public in 1983 and sold for approximately $4,000 with a talk time and battery life of about 30 minutes.