Theatre (or theater, see spelling differences) (from French "théâtre", from Greek "theatron", θέατρον, meaning "place of seeing") is the branch of the performing arts defined as simply as what "occurs when one or more human beings, isolated in time and/or space, present themselves to another or others." By this broad definition, theatre has existed since the dawn of man, as a result of human tendency for story telling. Since its inception, theatre has come to take on many forms, often utilizing elements such as speech, gesture, music, dance, and spectacle, combining the other performing arts, often as well as the visual arts, into a single artistic form. Modern Western theatre is dominated by realism, although many other forms, including classical and experimental forms, as well as Eastern forms, are frequently performed.
There are many different types of theatre that have developed over time. In drama, the written word which the actors speak is the most important. Political theatre aims to educate the audience about current issues and events. One of the oldest forms of performance is Sanskrit theatre, which originated in the Kuttampalams. Other types include black comedy,Commedia dell'arte, and Tragicomedy.
There are a variety of philosophies, artistic processes, and theatrical approaches to creating plays and drama. Some are connected to political or spiritual ideologies, and some are based on purely "artistic" concerns. Some processes focus on a story, some on theatre as event, and some on theatre as catalyst for social change. According to Aristotle's seminal theatrical critique Poetics, there are six elements necessary for theatre: Plot, Character, Idea, Language, Song, and Spectacle. The 17th century Spanish writer Lope de Vega wrote that for theatre one needs "three boards, two actors, and one passion". Others notable for their contribution to theatrical philosophy are Konstantin Stanislavski, Antonin Artaud, Bertolt Brecht, Orson Welles, Peter Brook, and Jerzy Grotowski.