Polygraph from medieval
The ancestor of the modern polygraph was invented in the Middle Ages. However, the effect of the modern polygraph is significantly different from the polygraph of the Middle Ages.
"Mouth of Truth" are one of the most unusual and popular attractions of Rome. Deceivers still come here with some trepidation.
Located on the mouth area of Boca della Verita case (square mouth of truth).
This medallion is located in the portico of the church of St. Maria in Cosmedin. Presumably, this sculpture was part of the ancient fountain of the 1st century and portrayed one of the pagan gods, probably Oceanus. There's also a version that the image of the god of the Tiber River.
The lips are round male face image with a beard, cut from a marble and having 1 to 75 m in diameter. His round eyes and a big hole in place of the mouth.
The round sculpture was created probably in the fourth century BC. e. and until the XVII century, it served as soon as the subject of decor. In the Middle Ages the superstitious people believed in the fact that for the lie threatens severe punishment in the form of the deprivation of his hands, you want to invest directly into the mystical marble mask.
Fame this image acquired by its ability to lie detector. It is said that the man told a lie at the time, his hand on the mouth of sculpture, she bit off his hand. It is even said that in the Middle Ages for the medallion specially put the executioner, who cut off the hands of liars, which was proven guilty. Brought here and wives, whose husbands were suspected of infidelity.
Set truth popularity is so great that they even captured in several films. It is best known for the scene near the mouth to the film "Roman Holiday" with Audrey Hepburn and Gregory Peck.
Recently there were quite a lot of machines with the image Set of truth in the different countries, looking at Rome, in many places you can buy souvenirs with the image of the sculpture.
Panormo portico of the church of Santa Maria in Cosmedin