Ventriloquists

Ventriloquism, or ventriloquy, is an act of stagecraft in which a person (a ventriloquist) changes his or her voice so that it appears that the voice is coming from elsewhere, usually a puppeteered "dummy". The act of ventriloquism is ventriloquizing, and the ability to do so is commonly called in English the ability to "throw" one's voice.

Originally, ventriloquism was a religious practice. The name comes from the Latin for to speak from the stomach, i.e. venter (belly) and loqui (speak). The Greeks called this gastromancy (Greek: εγγαστριμυθία). The noises produced by the stomach were thought to be the voices of the unliving, who took up residence in the stomach of the ventriloquist. The ventriloquist would then interpret the sounds, as they were thought to be able to speak to the dead, as well as foretell the future. One of the earliest recorded group of prophets to utilise this technique was the Pythia, the priestess at the temple of Apollo in Delphi, who acted as the conduit for the Delphic Oracle.

One of the most successful early gastromancers was Eurykles, a prophet at Athens; gastromancers came to be referred to as Euryklides in his honour. In the Middle Ages, it was thought to be similar to witchcraft. As Spiritualism led to stage magic and escapology, so ventriloquism became more of a performance art as, starting around the 19th century, it shed its mystical trappings.

In China,this practice is named after Kouji.

Other parts of the world also have a tradition of ventriloquism for ritual or religious purposes; historically there have been adepts of this practice among the Zulu, Inuit, and Māori peoples.

The shift from ventriloquism as manifestation of spiritual forces toward ventriloquism as entertainment happened in the eighteenth century at the travelling funfairs and market towns. The earliest example of a ventriloquist dates back to 1753 in England, where Sir John Parnell is depicted in an engraving of William Hogarth as speaking via his hand. In 1757, the Austrian Baron de Mengen is known to have implemented a small doll into his performance.

...
Wikipedia