An invent

What is the the best invention of the history?
I think that the best invention of the history is music,because music is a method of expressing all kinds of feelings, about your life, about love, about everything you can think, and you can sing just because it entertains you or encourage you. I think music is for all.
When was it invented?
The music has existed since the early civilizations, when primitive man began to use dance and music also used for rituals.
Is it useful?
I think it is very useful because, apart from expressing feelings and everything I've said it before but it goes with you in life is elemental, you may feel, can make you vent, you can make you feel happy ... I simply believe that is indispensable.
THE MUSIC
The music was invented by the old primitive civilizations, from those times were built rhythms for their rites and dances, which already had a meaning, something always contar.Muchísimo after the rock was created by the great guitarists in history, from before classical music accompanying the nobility of ancient times, was created by the old composers such as Beethoven or until our time today Mozart.Desde music has turned big enough that now there are many new styles that revolutionized the music world Current and serve as a mode of expression for the world.