Megalith

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Image:Dscn5212-mane-braz 800x600.jpg Image:Clooneen wedge tomb.jpg A megalith is a large stone which has been used to construct a structure or monument either alone or with other stones. Megalithic means made of such stones, but uses an interlocking system without the use of mortar or cement. The word megalith comes from the Ancient Greek megas meaning large, and lithos meaning stone.

1 Distribution of megaliths
2 Nabta Playa
3 Western European megaliths
4 Types of megalithic structures
5 Megalithic graves
6 Astronomical use
7 Modern megaliths
8 Examples of megaliths
9 See also
10 External links

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Distribution of megaliths

The term can be used to describe buildings erected by people from many parts of the world living in many different periods. In the early 20th century, some scholars believed that all megaliths belonged to one global "Megalithic culture" (Hyperdiffusionism, e. g. by Grafton Elliot Smith and William James Perry), but this has long been disproved by modern dating methods.

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Nabta Playa

Image:Nabta.gif Nabta Playa was once a large lake in the Nubian Desert, located 500 miles south of modern day Cairo [1]. By the 5th millennium BC the peoples in Nabta Playa had fashioned the world's earliest known astronomical device, 1000 years older than but comparable to Stonehenge [2].

Research shows it to be a prehistoric calendar that accurately marks the summer solstice [3]. Findings indicate that the region was occupied only seasonally, likely only in the summer when the local lake filled with water for grazing cattle [4], [5].

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Western European megaliths

In Western Europe and the Mediterranean, megaliths are generally constructions erected during the Neolithic or late stone age and Chalcolithic or Copper Age (4500 - 1500 B.C.E). Perhaps the most famous megalithic structure is Stonehenge in England, although many others are known throughout the world.

The French Comte de Caylus was the first to describe the Monuments of Carnac. Legrand d'Aussy introduced the terms menhir and dolmen, both taken from the Breton language, into antiquarian terminology. He interpreted megaliths as gallic tombs.

In Britain, the antiquarians Aubrey and Stukeley conducted early research into megaliths. In 1805, Jacques Cambry published a book called Monuments celtiques, ou recherches sur le culte des Pierres, précédées d'une notice sur les Celtes et sur les Druides, et suivies d'Etymologie celtiques, where he proposed a Celtic stone cult. This completely unfounded connection between druids and megaliths has haunted the public imagination since.

In Belgium there is a megalithic site at Wéris, a little town situated in the Ardennes. In the Netherlands megalithic structures can be found in the north-east of the current, mostly in the province of Drenthe.

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Types of megalithic structures

Different megalithic structures include:

Dolmen (or cromlech in Welsh): This is a free standing chamber consisting of standing stones covered by a capstone as a lid. They were used for burial and were covered by mounds.
Menhir: This is single standing stone.
Orthostat: This is an upright slab forming part of a larger structure.
Stone circle
Stone row
Stone ship
Taula: This is a straight standing stone, topped with another forming a 'T' shape.
Trilithon: Two parallel upright stones with a horizontal stone (called a lintel) placed on top, e.g. Stonehenge.

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Megalithic graves

Main article: Megalithic tomb Image:Abakan08.jpg Image:Abakan09.jpg Many megalithic monuments were burial mounds which were often re-used by different generations. The chambered cairn is a common type of collective tomb. Some of these are passage graves generally built of drystone walling and/or megaliths often with a round burial chamber in a round mound with a straight passage leading out. Gallery graves have a long megalithic chamber with parallel sides often in a long mound with an entrance at one end.

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Astronomical use

Many megaliths were thought to have a purpose in determining important astronomical events such as the solstice and equinox dates (see archaeoastronomy). Cup marks on megaliths have been thought by some to represent stars and thus to show the stellar orientation of megalithic sites.

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Modern megaliths

There are even some modern megalithic structures. The Coral Castle is an unusual stone structure created in the 1920s in Homestead, Florida by Edward Leedskalnin.

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