A herma, commonly herm in English, is a sculpture with a head and perhaps a torso above a plain, usually squared lower section, on which male genitals may also be carved at the appropriate height. Hermae were so called either because the head of Hermes was most common or from their etymological connection with the Greek word ἕρματα, which originally had no reference to Hermes at all. The form originated in ancient Greece, and was adopted by the Romans, and revived at the Renaissance in the form of term figures and atlantes.
Origin
In the earliest times Greek divinities were worshiped in the form of a heap of stones or a shapeless column of stone or wood. In many parts of Greece there were piles of stones by the sides of roads, especially at their crossings, and on the boundaries of lands. The religious respect paid to such heaps of stones, especially at the meeting of roads, is shown by the custom of each passer-by throwing a stone on to the heap or anointing it with oil. Later there was the addition of a head and phallus to the column, which became quadrangular.
Uses
In ancient Greece the statues were thought to ward off harm or evil, an apotropaic function, and were placed at crossings, country borders and boundaries as protection, in front of temples, near to tombs, outside houses, in the gymnasia, palaestrae, libraries, porticoes, and public places, at the corners of streets, on high roads as sign-posts, with distances inscribed upon them. Before his role as protector of merchants and travelers, Hermes was a phallic god, associated with fertility, luck, roads and borders. His name perhaps comes from the wordherma, referring to a square or rectangular pillar of stone, terracotta, or bronze; a bust of Hermes' head, usually with a beard, sat on the top of the pillar, and male genitals adorned the base. The surmounting heads were not, however, confined to those of Hermes; those of other gods and heroes, and even of distinguished mortals, were of frequent occurrence. In this case a compound was formed: Hermathena, Hermares, Hermherakles, Hermaphroditus, Hermanubis, Hermalcibiades, and so on. In Athens, where the hermai were most numerous and most venerated, they were placed outside houses as apotropes for good luck. They would be rubbed or anointed with olive oil and adorned with garlands or wreaths. This superstition persists, for example the Porcellino bronze boar of Florence, where the nose is shiny from being continually touched for good luck or fertility. from a herm, early 5th century BC In Roman and Renaissance versions, the body was often shown from the waist up. The form was also used for portrait busts of famous public figures, especially writers like Socrates and Plato. Sappho appears on Ancient Greek herms, and anonymous female figures were often used from the Renaissance on, when herms were often attached to walls as decoration.
In 415 BC, on a night shortly before the Athenian fleet was about to set sail for Syracuse during the Peloponnesian War, all of the Athenian hermai were vandalized. Many people at the time thought such an impious act would threaten the success of the expedition. Though it was never proven, the Athenians at the time believed it was the work of saboteurs, either from Syracuse or Spartan sympathizers from Athens itself; one suspect was the writer Xenophon. Enemies of Alcibiades, using the anger of the Athenians as a pretext to investigate further desecrations, accused him of other acts of impiety, including mutilations of other sacred objects and mocking performances of religious mystery ceremonies. He denied the accusations and offered to stand trial, but the Athenians did not want to disrupt the expedition any further, and his opponents wanted to use his absence to incite the people against him at a time when he would not be able to defend himself. Once he had left on the expedition, his political enemies had him charged and sentenced to deathin absentia, both for the mutilation of the hermai, and the supposedly related crime of profaning the Eleusinian Mysteries.