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Petrosphere
Petrosphere (from Greek πέτρα (''petra''), "stone", and σφαῖρα (''sphaira''), "ball") may refer to: * Stone balls, a diverse class of archaeological artefact ** Particularly carved stone balls Carved stone balls are petrospheres dated from the late Neolithic, to possibly as late as the Iron Age, mainly found in Scotland, but also elsewhere in Britain and Ireland. They are usually round and rarely oval, and of fairly uniform size at ..., prehistoric artefacts found in the British Isles * Petrosphere (geology), a planet's crust and mantle {{Disambiguation ...
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Carved Stone Balls
Carved stone balls are petrospheres dated from the late Neolithic, to possibly as late as the Iron Age, mainly found in Scotland, but also elsewhere in Britain and Ireland. They are usually round and rarely oval, and of fairly uniform size at around  inches or 7 cm across, with anything between 3 and 160 protruding knobs on the surface. They range from having no ornamentation (apart from the knobs) to extensive and highly varied engraved patterns. A wide range of theories has been produced to explain their use or significance, with none gaining very wide acceptance. They are not to be confused with the much larger smooth round stone spheres of Costa Rica. Age and distribution Carved stone balls date as old as 5,200 years old, coming from the late Neolithic to at least the Bronze Age. Nearly all have been found in north-east Scotland, the majority in Aberdeenshire, the fertile land lying to the east of the Grampian Mountains. A similar distribution to tha ...
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Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koi ...
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Stone Ball
In archaeology, a stone ball or petrosphere (from Greek πέτρα (''petra''), "stone", and σφαῖρα (''sphaira''), "ball") is the name for any spherical man-made object of any size that is composed of stone. These mainly prehistoric artifacts may have been created or selected, but altered in some way to perform their specific function, including carving and painting. Several classes of petrospheres exist, such as: *the stone spheres of Costa Rica, * painted pebbles from Scotland, *stone charms from Scotland and sandstone balls from such sites as Traprain Law,Rees, Thomas & Hunter, Fraser (2000). Archaeological excavation of a medieval structure and an assemblage of prehistoric artefacts from the summit of Traprain Law, East Lothian. 1996 - 7. P.S.A.S. 130, P. 413 - 440. *the carved stone balls, which are mainly from Scotland, although they have also been found in Cumbria and Ireland, *and carved stone shot for cannons and trebuchets. Naturally formed stone balls, s ...
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