Stonehenge was built between 3100 and 1550 BC about 8 miles (13 km) north of Salisbury, England. It is a circular group of huge, erect stones. Stonehenge is probably the most important prehistoric monument in the whole of Britain and has attracted visitors from very early times. There were three main periods of building: the first period beginning around 3100 BC included the digging of a circular ditch and a ring of 56 pits, known as Aubrey Holes. In the second period, around 2100 BC, huge pillars of rocks were brought from Southwestern Wales and erected into concentric circles around the centre of the site. The double circle was never completed and was dismantled during the following period. The monument was remodelled in the third person. A circle of 30 upright stones weighing up to 50 tons each was erected and capped by ring of stone lintels. These enclosed a horseshoe-shaped formation of five pairs of upright stones, each pair capped with a stone lintel. This final phase of building probably ended before 1500 BC. Scientists believe that early people were able to foretell eclipses of the sun and the moon by the positions of these celestial bodies in relation to the stone monument. The site may have served as an observatory where early rituals or religions ceremonies took place on specific days on the year.
There were three main building phases, each between about 3100 BC and 1950 BC. The first circle, ~3000 BC, was made of timber. The post holes for the timber have been found. Around 2600 BC, the builders gave up timber in favour of stone. Most of the construction took place between 2640 and 2480 BC. Scientists have discovered that the Stonehenge builders originated from modern day Turkey from DNA analysis.
The first stone circle was a set of 'bluestones'. The holes held up to 80 standing stones (shown blue on the plan), only 43 of which can be traced today. The bluestones (made of dolerite, an igneous rock), are thought to have been brought from the Preseli Hills, 160 miles (260 kilometres) away in modern-day Pembrokeshire, Wales.
This, the long distance human transport theory, was bolstered in 2011 by the discovery of a megalithic bluestone quarry at Craig Rhos-y-felin, near Crymych in Pembrokeshire. This is the most likely place where some of the stones were got. Another theory is that they were brought much nearer to the site as glacial erratics by the Irish Sea Glacier. This theory is not preferred, because there is no evidence of glacial deposition within southern central England.
Later, ~2400 BC, 30 huge grey sarsen stones were brought to the site. They were erected in a circle 33 metres in diameter, with lintels on top of the standing stones. The remaining bluestones were placed as an inner circle. The site was in use until the Bronze Age. The modern Stonehenge consists entirely of original stones, some of which have been replaced in upright position.
The stones may have come from a quarry about 25 miles (40 km) north of Stonehenge on the Marlborough Downs, or they may have been collected from a "litter" of sarsens on the chalk downs, which are closer.
The stones were 'dressed' (worked on) and given mortice and tenon joints. 30 were erected as a 33 metres (108 ft) diameter circle of standing stones, with a ring of 30 lintel stones resting on top. The lintels were fitted to one another using another woodworking method, the tongue and groove joint. Each standing stone was about 4.1 metres (13 ft) high, 2.1 metres (6 ft 11 in) wide and weighed about 25 tons.
Stonehenge, however, does have a number of satellite structures which are part of the 'ritual landscape':
- Bluehenge/Bluestonehenge: a new discovery, one mile to the southeast.
- Durrington Walls: a Neolithic settlement two miles northeast of Stonehenge.
- Normanton Down Barrows: a Neolithic and Bronze Age barrow cemetery.
- Stonehenge Avenue: leads two miles from Stonehenge to Bluehenge on the River Avon.
- Stonehenge Cursus: the largest monument in the area, not easily visible on the ground.
- Woodhenge: found in 1925 by an aerial survey. It had a henge and a wooden circle.
No one knows who built Stonehenge or why they built it. During the summer solstice, the sunrise lines up with some of the stones in a particular way. This suggests that the arrangement of stones may work as a calendar. In Egypt and South America, similar ancient buildings can be found. They also show the time of the solstice.
The World Heritage Site includes Avebury and Stonhenge together, though they are quite distinct.
- UNESCO, "Stonehenge, Avebury and Associated Sites"; retrieved 2012-4-19.
- Remains of a former ring bank and ditch
- Marc Kaufman (January 31, 2007). "An ancient settlement is unearthed near Stonehenge". The Washington Post. Retrieved 2008-05-23.
- Rincon, Paul (2019-04-16). "DNA reveals origin of Stonehenge builders". Retrieved 2019-04-20.
- "Stonehenge builders came from as far as modern-day Turkey, DNA suggests". ITV News. Retrieved 2019-04-20.
- Parker Pearson, Michael (December 2015). "Craig Rhos-y-felin: a Welsh bluestone megalith quarry for Stonehenge". Antiquity. Antiquity Publications Ltd,. 89 (348): 1331–1352. doi:10.15184/aqy.2015.177. Retrieved 15 December 2015. Unknown parameter
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- John, Brian 2007: The Stonehenge Bluestones—glacial transport back in favour Archived 2010-09-01 at the Wayback Machine
- "How did Stonehenge come into the care of English Heritage?". FAQs on Stonehenge. English Heritage. Retrieved 2007-12-17.
- "Ancient ceremonial landscape of great archaeological and wildlife interest". Stonehenge Landscape. National Trust. Retrieved 2007-12-17.
- Malone, Caroline. 2005. Neolithic Britain and Ireland. Tempus, Stroud, Gloucestershire.