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Knowth
Knowth (; ) is a prehistoric tomb overlooking the River Boyne in County Meath, Ireland. It comprises a large passage tomb surrounded by 17 smaller tombs, built during the Neolithic era around 3200 BC. It contains the largest assemblage of megalithic art in Europe. Knowth is part of the Brú na Bóinne complex, a World Heritage Site that also includes the similar passage tombs of Newgrange and Dowth. After its initial period of use, Knowth gradually became a ruin, although the area continued to be a site of ritual activity in the Bronze Age. During the early Middle Ages, a royal residence was built on top of the great mound, which became the seat of the Kings of Knowth or Northern Brega. Archaeologist George Eogan led an extensive investigation of the site from the 1960s to 1980s, and parts of the monument were reconstructed. Description The large mound has been estimated to date from c. 3200 BC. The mound is about high and in diameter, covering roughly a hectare. It contain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knowth Passage Tomb 5
Knowth (; ) is a prehistoric tomb overlooking the River Boyne in County Meath, Republic of Ireland, Ireland. It comprises a large passage tomb surrounded by 17 smaller tombs, built during the Neolithic Europe, Neolithic era around 3200 BC. It contains the largest assemblage of megalithic art in Europe. Knowth is part of the Brú na Bóinne complex, a World Heritage Site that also includes the similar passage tombs of Newgrange and Dowth. After its initial period of use, Knowth gradually became a ruin, although the area continued to be a site of ritual activity in the Bronze Age Ireland, Bronze Age. During the Early Medieval Ireland, early Middle Ages, a royal residence was built on top of the great mound, which became the seat of the Kings of Brega, Kings of Knowth or Northern Brega. Archaeologist George Eogan led an extensive investigation of the site from the 1960s to 1980s, and parts of the monument were reconstructed. Description The large mound has been estimated to date fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brú Na Bóinne
(, "mansion or palace of the Boyne"), also called the Boyne Valley tombs, is an ancient monument complex and ritual landscape in County Meath, Republic of Ireland, Ireland, located in a bend of the River Boyne. It is one of the world's most important Neolithic landscapes, comprising at least ninety monuments including passage tombs, burial mounds, standing stones and Enclosure (archaeology), enclosures. The site is dominated by the passage tombs of Newgrange (), Knowth () and Dowth (), built during the 32nd century BC. Together these have the largest assemblage of megalithic art in Europe. The associated archaeological culture is called the "Boyne culture". ''Brú na Bóinne'' is also an important archaeoastronomical site; several of the passage tombs are aligned with the winter solstice and equinoxes. The area continued to be a site of ritual and ceremonial activity in the later Bronze Age Europe, Bronze Age and Iron Age Europe, Iron Age. In Irish mythology, the tombs are said ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newgrange
Newgrange () is a prehistoric monument in County Meath in Ireland, placed on a rise overlooking the River Boyne, west of the town of Drogheda. It is an exceptionally grand passage tomb built during the Neolithic Period, around 3100 BC, making it older than Stonehenge and the Egyptian pyramids. Newgrange is the main monument in the Brú na Bóinne complex, a World Heritage Site that also includes the passage tombs of Knowth and Dowth, as well as other henges, burial mounds and standing stones. Newgrange consists of a large circular mound with an inner stone passageway and cruciform chamber. Burnt and unburnt human bones, and possible grave goods or votive offerings, were found in this chamber. The monument has a striking façade made mostly of white quartz cobblestones, and it is ringed by engraved kerbstones. Many of the larger stones of Newgrange are covered in megalithic art. The mound is also ringed by a stone circle. Some of the material that makes up the monument ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Eogan
George Eogan, MRIA (14 September 1930 – 18 November 2021) was an Irish archaeologist. He was born in Nobber, County Meath, and studied at University College Dublin (UCD) and then Trinity College Dublin. In 1965, he was appointed to a lectureship at UCD, becoming a professor in 1979, and also serving as head of department from then until 1995.''From megaliths to metal: essays in honour of George Eogan'', p.xii Eogan was particularly known for his work over forty years at Knowth, having been director of the Knowth Research Project. In 1968, he became the first person in over a millennium to enter the east-side tomb at the site. Eogan was also appointed an independent member of Seanad Éireann Seanad Éireann ( ; ; "Senate of Ireland") is the senate of the Oireachtas (the Irish legislature), which also comprises the President of Ireland and Dáil Éireann (defined as the house of representatives). It is commonly called the Seanad or ..., serving from 1987 until 1989. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kings Of Brega
The Kings of Brega were rulers of Brega, a petty kingdom north of Dublin in medieval Ireland. Overview Brega took its name from ' ('), meaning "fine plain", in modern County Meath, County Louth and County Dublin, Ireland. They formed part of the Uí Néill kindred, belonging to the Síl nÁedo Sláine branch of the southern Uí Néill. The kingdom of Brega included the Hill of Tara, the site where the High King of Ireland was proclaimed. Brega was bounded on the east by the Irish Sea and on the south by the River Liffey. It extended northwards across the River Boyne to include Sliabh Breagha the line of hills in southern County Louth. The western boundary, which separated it from the Kingdom of Mide, was probably quite fluid and is not accurately known. Brega was annexed in the 6th century by the Uí Néill. By the middle of the 8th century the Síl nÁedo Sláine had split into two hostile branches: Southern Brega, or the Kingdom of Loch Gabhair, which was ruled by the Uí ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Ireland
The prehistory of Ireland has been pieced together from Archaeology, archaeological evidence, which has grown at an increasing rate over recent decades. It begins with the first evidence of permanent human residence in Ireland around 10,500 BC (although there is evidence of human presence as early as 31,000 BC) and finishes with the start of the historical record around 400 AD. Both the beginning and end dates of the period are later than for much of Europe and all of the Near East. The prehistory, prehistoric period covers the Palaeolithic, Mesolithic, Neolithic Europe, Neolithic, Bronze Age Europe, Bronze Age and Iron Age Europe, Iron Age societies of Ireland. For much of Europe, the historical record begins when the Roman Empire, Romans invaded; as Ireland was not invaded by the Romans its historical record starts later, with the coming of Christianity. The two periods that have left the most spectacular groups of remains are the Neolithic, with its megalithic tombs, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bronze Age Ireland
The prehistory of Ireland has been pieced together from archaeological evidence, which has grown at an increasing rate over recent decades. It begins with the first evidence of permanent human residence in Ireland around 10,500 BC (although there is evidence of human presence as early as 31,000 BC) and finishes with the start of the historical record around 400 AD. Both the beginning and end dates of the period are later than for much of Europe and all of the Near East. The prehistoric period covers the Palaeolithic, Mesolithic, Neolithic, Bronze Age and Iron Age societies of Ireland. For much of Europe, the historical record begins when the Romans invaded; as Ireland was not invaded by the Romans its historical record starts later, with the coming of Christianity. The two periods that have left the most spectacular groups of remains are the Neolithic, with its megalithic tombs, and the Bronze Age, which left among other things, gold jewellery from a time when Ireland was a m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dowth
Dowth () is the site of Neolithic passage tombs near the River Boyne in County Meath, Ireland. It is one of the three main tombs of the ''Brú na Bóinne'' World Heritage Site, along with Newgrange and Knowth. Its features align it with the other passage tombs, which date from around 3200 BC. Unlike its bigger neighbours, Dowth has mostly been left as a ruin, although its smaller inner chambers are largely intact. The Royal Irish Academy carried out a botched excavation in 1847, leaving a large crater in the mound that has never been repaired. Description The cairn or tumulus is about in diameter and high, and surrounded by large kerbstones, some of which are decorated. Quartz was found fallen outside the kerbing, suggesting that the entrance to this tomb was surrounded by glittering white stone, as at Newgrange. Three stone-lined passages lead into the mound from the west. These comprise two passage tombs (known as Dowth North and Dowth South) and a souterrain. The longest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
County Meath
County Meath ( ; or simply , ) is a Counties of Ireland, county in the Eastern and Midland Region of Republic of Ireland, Ireland, within the Provinces of Ireland, province of Leinster. It is bordered by County Dublin to the southeast, County Louth, Louth to the northeast, County Kildare, Kildare to the south, Offaly to the southwest, Westmeath to the west, County Cavan, Cavan to the northwest, and County Monaghan, Monaghan to the north. To the east, Meath also borders the Irish Sea along a narrow strip between the rivers River Boyne, Boyne and Delvin River, Delvin, giving it the List of Irish counties by coastline, second shortest coastline of any county. Meath County Council is the Local government in the Republic of Ireland, local authority for the county. Meath is the List of Irish counties by area, 14th-largest of Ireland's 32 traditional counties by land area, and the List of Irish counties by population, 8th-most populous, with a total population of 220,826 according to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selenography
Selenography is the study of the surface and physical features of the Moon (also known as geography of the Moon, or selenodesy). Like geography and areography, selenography is a subdiscipline within the field of planetary science. Historically, the principal concern of selenographists was the mapping and naming of the lunar terrane identifying Lunar mare, maria, Impact crater, craters, mountain ranges, and other various features. This task was largely finished when high resolution images of the near side of the Moon, near and far side of the Moon, far sides of the Moon were obtained by orbiting spacecraft during the early space era. Nevertheless, some regions of the Moon remain poorly imaged (especially near the poles) and the exact locations of many features (like crater depths) are uncertain by several kilometers. Today, selenography is considered to be a subdiscipline of Geology of the Moon, selenology, which itself is most often referred to as simply "lunar science." History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spirals
In mathematics, a spiral is a curve which emanates from a point, moving further away as it revolves around the point. It is a subtype of whorled patterns, a broad group that also includes concentric objects. Two-dimensional A two-dimensional, or plane, spiral may be easily described using polar coordinates, where the radius r is a monotonic continuous function of angle \varphi: * r=r(\varphi)\; . The circle would be regarded as a degenerate case (the function not being strictly monotonic, but rather constant). In ''x-y-coordinates'' the curve has the parametric representation: * x=r(\varphi)\cos\varphi \ ,\qquad y=r(\varphi)\sin\varphi\; . Examples Some of the most important sorts of two-dimensional spirals include: * The Archimedean spiral: r=a \varphi * The hyperbolic spiral: r = a/ \varphi * Fermat's spiral: r= a\varphi^ * The lituus: r = a\varphi^ * The logarithmic spiral: r=ae^ * The Cornu spiral or ''clothoid'' * The Fibonacci spiral and golden spiral * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passage Grave
A passage grave or passage tomb consists of one or more burial chambers covered in earth or stone and having a narrow access passage made of large stones. These structures usually date from the Neolithic Age and are found largely in Western Europe. When covered in earth, a passage grave is a type of tumulus, burial mound which is found in various forms all over the world. When a passage grave is covered in stone, it is a type of cairn. Construction and design The building of passage graves was normally carried out with megaliths along with smaller stones. The earliest passage tombs seem to take the form of small dolmens, although not all dolmens are passage graves. The passage itself in a number of notable instances is aligned in such a way that the sun shines through the passage and into the chamber at a significant point in the year, often at sunrise on the solstice, winter solstice or at sunset on the equinox. Many later passage tombs were constructed at the tops of hills or mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
