The Neutral mask was invented by Jacques Copeau and Amleto Sartori, at the beginning of the sec. XX, initially called Noble Mask. Copeau was inspired by the Ancient Greek Theatre, and in particular the choruses of the Greek Tragedy, to create this mask. The objective was to find a perfect mask, without any trace of expression, that represented the human being in a synthetic and general way. This mask was intended to be used in actor training and training, initiating him into theatrical representation. The Neutral mask introduces the rules and laws of theatrical representation, helping the actor to find a state of availability and concentration. It is a full mask, which means that it covers the entire face, and a mask of silence, which does not allow speech. The performance with this mask is refined down to the essentials, with the actor's body and his gestures being essential. When Jacques Lecoq later revived this concept, Copeau's Noble masks, made from paper pulp, were replaced by Neutral leather masks. Amleto Sartori was the first craftsman to use this material in his creations. The Neutral mask has thus become essential for many Theater schools and is traditionally the first mask that the actor is confronted with when learning the Mask Technique