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The first telephone was created by Alexander Graham Bell, he filed the first invention patent in March 1876, hours before another scholar, Elisha Gray. The invention of the telephone was said to have occurred accidentally to improve telegraph transmissions, which have very similar structural concepts.

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Shaped like a "candlestick", this telephone worked by using a crank, where the signal was sent to an operator, who completed the call.

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The classic telephone model was developed, where a ring was turned to dial the desired number. To this day, some homes still have this device, either for making calls or as a decorative feature.

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In the year 1965 the first "flip" telephone model was created. There were still no buttons on it, and it was also necessary to turn the ring to dial.

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Landline telephones with buttons for making calls appear. Although it is an old model, it is still widely used, both at home and in commercial environments.

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The wireless telephone is created, a real technological leap for the time, allowing users to walk within a certain radius while talking on the phone. This device works by means of a base, connected to an outlet and a telephone connection.

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In the early 1990s Motorola launched Brazil's first cell phone model. This device already had a display to see the numbers entered. It became known as "tijolão" (big brick) because of its large size.

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In the 2000s, cell phones with colorful displays and differentiated designs appear. In fact, in 2002 they gain an extra accessory: the digital camera.

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In this year, the first cell phone models with the ability to store music files (MP3) are launched.

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We reach the year in which Apple revolutionizes the cell phone market and launches the iPhone, a touchscreen device, its own operating system, and which allows applications to run.The first smartphone is born.

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Smartphones with QWERTY keyboards, which are a version of a computer keyboard, compressed to the size of a cell phone, are starting to be produced.

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New smartphone models are launched with unique operating systems and numerous applications. In addition, most cell phones now support internet connection and pictures taken with the camera have better definition.

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Finally, we have the more current models where smartphones with a huge range of features.

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Evolution of the Telephone 1876 - 2020 | History of telephone