MY INVENTION

It was invented by Antonio Meucci in, but it was patented by Alexander Graham Bell in 1876.

It has revolutionized the life of millions of people. In the last years, it has improved a lot. All the people have got at least one. People usually use it for calling people, sending messages, for chatting via Whats-App, for playing games, knowing what is happening to people (friends or famous people) ,listening to music, knowing new people, etc...

Nowadays, there are a lot of different brads, like Samsung or Apple, and from my point of view, it's one of the most important inventions in the history.

Have you already guess what invention I was speaking of?