A pebble is a small boulder . A boulder, in turn, is a stone which, from the impulse that the water gives it, rolls and smoothes out, acquiring a rounded shape.
Pebbles, therefore, are pieces of rock loose that water flows transfer by various means. These displacements that occur naturally give them a characteristic morphology, in which no edges are recorded due to the erosion They suffer when they move.
Due to its characteristics, pebbles are given different uses. In the building , are used to pavements and plasters since they facilitate stacking and easily adhere to cement or concrete.
Children, on the other hand, often use pebbles in the game which consists of throwing stones into the water so that they bounce several times before sinking. This entertainment is known as make sapito , make the frog , make duckling , the flat or goats .
When throwing the pebble, it is sought that the stone bounce and advance before diving. Ideally, the launch is made near the surface of the liquid, and not from very high. The pebble, upon encountering the surface tension of the Water , does not sink immediately.
Pebbles, finally, were used as weapons for the slingers of the Ancient Rome . These soldiers had different slings to throw stones: the pebbles, because of their shape, could travel long distances through the air.
In 1994, the so-called Kafkania pebble in Greece, more precisely in the archaeological site known as Olympia, located in the peripheral unit of Elis. In this stone we can appreciate a inscription of little extension with eight syllabic signs whose reading has not been determined with precision but it is estimated that it should be a-so-na / qo-ro-qa / qa-jo.
On the other side of the Kafkania pebble we see a labrys, that is to say a symbol Greek that looks like a double-edged ax. The ancient Greeks called her sagaris or pelekys, and in the Roman Empire it was known by the name of bipennis. There are several representations of the labrys, beyond that present in the pebble of Kafkania, dating from the Paleolithic and Neolithic periods; They are usually associated with the mother goddess, that is, fertility.
Among the scholars of this peculiar finding there are those who suggest that qo-ro-qa, part of the inscription that is on one of its faces, is a person's own name, although it is not known if it is male or female, nor if it is the pebble owner. With respect to the date on which we can contextualize it, it is estimated that it is the seventeenth century BC. C., which would be the testimony in oldest text of its kind.
The pebble of Kafkania belongs to continental Greece, and the system of writing that it contains is known by the name of linear B , which was used for documents in the phase of the Greek language called Mycenaean Greek . Linear B was used especially in the administrative field, between the 17th and 12th centuries BC. C., long before the alphabet emerged as a form of organization and writing of the Greek language.
It should be noted that some experts in the matter they believe that the pebble of Kafkania is not authentic, but that it is a counterfeit made in modernity. Among the reasons that gave rise to suspicions is the coincidence of a-so-na with lasonas, the name of one of the children of those who discovered this stone.