Examples of non-inventions in the past in the past, people, phone, 1 don't know what phone and don't know how to use it, but in the past, people used to write letters to communicate, though it is not as fast as the current practice by writing letters and make a cool journey 2. In the past. Travel is difficult, because in the past, there are no motor cars, aircraft, like the current era, but in the past, people choose to walk.
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