You have probably never stopped for a second and asked yourself about this very handy technological invention. Nowadays, we may take them for granted, but before the second part of the 20th century, the everyday folks couldn’t shut out the world with the music on their headphones. They were forced to listen to other noises and conversations even if they didn’t want to hear them. Additionally, you can now benefit those who don’t want to listen to you blasting your newest musical hits. However, the headphones have many more uses than just making you an antisocial being. Let’s start from the end of the 19th century.