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Alexander Graham Bell invented the telephone, one of the most useful (because this gadget can replace a number of others) and more useful (it is small and can solve a number of problems) things that we use every day.
Thus, such a presentation is an excellent example of the fact that we shouldn't forget the achievements of our predecessors, and we should also remember the main shifts in our society.
You can read more about inventions that have influenced the world at essayswriters.com.
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