1976-PHONE-Alexander Graham Bell, USA

Alexander Graham Bell had a great obsession: communication. The goal was build a machine that would allow to speak from different places.

This did when he presented his invention at the Centennial Exhibition, held in Philadelphia. This invention was the phone, electric machine carrying voice. OLF his objective with this communication, were highly favoured because no longer took months or days for them to receive information, nor were these letters travelling, could be also given them were not so necessary news moments once occurred facts and not wait days for informed relatives or people living far away.