Lower Saxony is a German state situated in northwestern Germany. It is the second-largest state by land area, with 47,624 km2, fourth-largest in population among the 16 Länder federated as the Federal Republic of Germany. In rural areas, Northern Low Saxon and Saterland Frisian are still spoken, but the number of speakers is declining. Lower Saxony borders on the North Sea, the states of Schleswig-Holstein, Mecklenburg-Vorpommern, Saxony-Anhalt, Thuringia and North Rhine-Westphalia, the Netherlands. Furthermore, the state of Bremen forms two enclaves within Lower Saxony, one being the city of Bremen, the other, its seaport city of Bremerhaven. In fact, Lower Saxony borders more neighbours than any other single Bundesland; the state's principal cities include the state capital Hanover, Braunschweig, Lüneburg, Osnabrück, Hildesheim, Wolfenbüttel, Göttingen. The northwestern area of Lower Saxony, which lies on the coast of the North Sea, is called East Frisia and the seven East Frisian Islands offshore are popular with tourists.
In the extreme west of Lower Saxony is the Emsland, a traditionally poor and sparsely populated area, once dominated by inaccessible swamps. The northern half of Lower Saxony known as the North German Plains, is invariably flat except for the gentle hills around the Bremen geestland. Towards the south and southwest lie the northern parts of the German Central Uplands: the Weser Uplands and the Harz mountains. Between these two lie the Lower Saxon Hills, a range of low ridges. Thus, Lower Saxony is the only Bundesland that encompasses both mountainous areas. Lower Saxony's major cities and economic centres are situated in its central and southern parts, namely Hanover, Osnabrück, Salzgitter, Göttingen. Oldenburg, near the northwestern coastline, is another economic centre; the region in the northeast is called the Lüneburg Heath, the largest heathland area of Germany and in medieval times wealthy due to salt mining and salt trade, as well as to a lesser degree the exploitation of its peat bogs until about the 1960s.
To the north, the Elbe River separates Lower Saxony from Hamburg, Schleswig-Holstein, Mecklenburg-Vorpommern, Brandenburg. The banks just south of the Elbe are known as Altes Land. Due to its gentle local climate and fertile soil, it is the state's largest area of fruit farming, its chief produce being apples. Most of the state's territory was part of the historic Kingdom of Hanover, it was created by the merger of the State of Hanover with three smaller states on 1 November 1946. Lower Saxony has a natural boundary in the north in the North Sea and the lower and middle reaches of the River Elbe, although parts of the city of Hamburg lie south of the Elbe; the state and city of Bremen is an enclave surrounded by Lower Saxony. The Bremen/Oldenburg Metropolitan Region is a cooperative body for the enclave area. To the southeast, the state border runs through the Harz, low mountains that are part of the German Central Uplands; the northeast and west of the state, which form three-quarters of its land area, belong to the North German Plain, while the south is in the Lower Saxon Hills, including the Weser Uplands, Leine Uplands, Schaumburg Land, Brunswick Land, Untereichsfeld and Lappwald.
In northeast, Lower Saxony is Lüneburg Heath. The heath is dominated by the poor, sandy soils of the geest, whilst in the central east and southeast in the loess börde zone, productive soils with high natural fertility occur. Under these conditions—with loam and sand-containing soils—the land is well-developed agriculturally. In the west lie the County of Bentheim, Osnabrück Land, Oldenburg Land, Oldenburg Münsterland, on the coast East Frisia; the state is dominated by several large rivers running northwards through the state: the Ems, Weser and Elbe. The highest mountain in Lower Saxony is the Wurmberg in the Harz. For other significant elevations see: List of hills in Lower Saxony. Most of the mountains and hills are found in the southeastern part of the state; the lowest point in the state, at about 2.5 m below sea level, is a depression near Freepsum in East Frisia. The state's economy and infrastructure are centred on the cities and towns of Hanover, Celle, Wolfsburg and Salzgitter. Together with Göttingen in southern Lower Saxony, they form the core of the Hannover–Braunschweig–Göttingen–Wolfsburg Metropolitan Region.
Lower Saxony has clear regional divisions that manifest themselves geographically, as well as and culturally. In the regions that used to be independent the heartlands of the former states of Brunswick, Hanover and Schaumburg-Lippe, a marked local regional awareness exists. By contrast, the areas surrounding the Hanseatic cities of Bremen and Hamburg are much more oriented towards those centres. Sometimes and transition areas happen between the various regions of Lower Saxony. Several of the regions listed here are part of other, larger regions, that are included in the list. Just under 20% of the land area of Lower Saxony is designated as nature parks, i.e.: Dümmer, Elbhöhen-Wendland, Elm-Lappwald, Harz, Lüneburger Heide, Münden, Terra.vita, Solling-Vogler, Lake Steinhude, Südheide, Weser Uplands, Wildeshausen Geest, Bourtanger Moor-Bargerveen. L
A naveta is a form of megalithic chamber tomb unique to the Balearic island of Menorca. They date to the early Bronze Age, they have two vertical and two corbelled walls giving them the form of an upturned boat, from which the navetas take their name. The largest example is the Naveta d'Es Tudons, around 4m high, 14m long and 6.4m wide. The first author who wrote about this structures was Joan Ramis in his book Celtic antiques on the island of Menorca, edited 1818, being the first book in Spanish language devoted to Prehistory" Guide to Menorca: Prehistory
A megalith is a large stone, used to construct a structure or monument, either alone or together with other stones. The word megalithic describes structures made of such large stones without the use of mortar or concrete, representing periods of prehistory characterised by such constructions. For periods, the word monolith, with an overlapping meaning, is more to be used; the word megalith comes from the Ancient Greek μέγας and λίθος. Megalith denotes one or more rocks hewn in definite shapes for special purposes, it has been used to describe buildings built by people from many parts of the world living in many different periods. The term was first used in reference to Stonehenge by Algernon Herbert in 1849. A variety of large stones are seen as megaliths, with the most known megaliths not being tombs; the construction of these structures took place in the Neolithic period and continued into the Chalcolithic period and the Bronze Age. At a number of sites in eastern Turkey, large ceremonial complexes from the 9th millennium BC have been discovered.
They belong to the incipient phases of animal husbandry. Large circular structures involving carved. Although these structures are the most ancient megalithic structures known so far, it is not clear that any of the European megalithic traditions are derived from them. At Göbekli Tepe, four stone circles have been excavated from an estimated 20; some measure up to 30 metres across. As well as human figures, the stones carry a variety of carved reliefs depicting boars, lions, birds and scorpions. Dolmens and standing stones have been found in large areas of the Middle East starting at the Turkish border in the north of Syria close to Aleppo, southwards down to Yemen, they can be encountered in Lebanon, Iran, Israel and Saudi Arabia. The largest concentration can be found in southern Syria and along the Jordan Rift Valley, however they are being threatened with destruction, they date from the late Chalcolithic/Early Bronze Age. Megaliths have been found on Kharg Island and pirazmian in Iran, at Barda Balka in Iraq.
A semicircular arrangement of megaliths was found in Israel at Atlit Yam, a site, now under the sea. It is a early example, dating from the 7th millennium BC; the most concentrated occurrence of dolmens in particular is in a large area on both sides of the Jordan Rift Valley, with greater predominance on the eastern side. They occur first and foremost on the Golan Heights, the Hauran, in Jordan, which has the largest concentration of dolmen in the Middle East. In Saudi Arabia, only few dolmen have been identified so far in the Hejaz, they seem, however, to re-emerge in Yemen in small numbers, thus could indicate a continuous tradition related to those of Somalia and Ethiopia. The standing stone has a ancient tradition in the Middle East, dating back from Mesopotamian times. Although not always'megalithic' in the true sense, they occur throughout the Orient, can reach 5 metres or more in some cases; this phenomenon can be traced through many passages from the Old Testament, such as those related to Jacob, the grandson of Abraham, who poured oil over a stone that he erected after his famous dream in which angels climbed to heaven.
Jacob is described as putting up stones at other occasions, whereas Moses erected twelve pillars symbolizing the tribes of Israel. The tradition of venerating stones continued in Nabatean times and is reflected in, e.g. the Islamic rituals surrounding the Kaaba and nearby pillars. Related phenomena, such as cupholes, rock-cut tombs and circles occur in the Middle East; the most common type of megalithic construction in Europe is the portal tomb – a chamber consisting of upright stones with one or more large flat capstones forming a roof. Many of these, though by no means all, contain human remains, but it is debatable whether use as burial sites was their primary function; the megalithic structures in the northwest of France are believed to be the oldest in Europe based on radiocarbon dating. Though known as dolmens, the term most accepted by archaeologists is portal tomb; however many local names exist, such as anta in Galicia and Portugal, stazzone in Sardinia, hunebed in the Netherlands, Hünengrab in Germany, dysse in Denmark, cromlech in Wales.
It is assumed that most portal tombs were covered by earthen mounds. The second-most-common tomb type is the passage grave, it consists of a square, circular, or cruciform chamber with a slabbed or corbelled roof, accessed by a long, straight passageway, with the whole structure covered by a circular mound of earth. Sometimes it is surrounded by an external stone kerb. Prominent examples include the sites of Brú na Bóinne and Carrowmore in Ireland, Maes Howe in Orkney, Gavrinis in France; the third tomb type is a diverse group known as gallery graves. These are axially arranged chambers placed under elongated mounds; the Irish court tombs, British long barrows, German Steinkisten belong to this group. Another type of megalithic monument, the single standing stone, or menhir as it is known in France, is common throughout Europe, where some 50,000 examples have been noted; some of these are thought to have an astronomical function as a foresight. In some areas and complex alignments of such stones exist, the largest known example being located at Carnac in Brittany, France.
In parts of Britain and Ireland a common type of megalithic construct
The Neolithic, the final division of the Stone Age, began about 12,000 years ago when the first development of farming appeared in the Epipalaeolithic Near East, in other parts of the world. The division lasted until the transitional period of the Chalcolithic from about 6,500 years ago, marked by the development of metallurgy, leading up to the Bronze Age and Iron Age. In Northern Europe, the Neolithic lasted until about 1700 BC, while in China it extended until 1200 BC. Other parts of the world remained broadly in the Neolithic stage of development, although this term may not be used, until European contact; the Neolithic comprises a progression of behavioral and cultural characteristics and changes, including the use of wild and domestic crops and of domesticated animals. The term Neolithic derives from the Greek νέος néos, "new" and λίθος líthos, "stone" meaning "New Stone Age"; the term was coined by Sir John Lubbock in 1865 as a refinement of the three-age system. Following the ASPRO chronology, the Neolithic started in around 10,200 BC in the Levant, arising from the Natufian culture, when pioneering use of wild cereals evolved into early farming.
The Natufian period or "proto-Neolithic" lasted from 12,500 to 9,500 BC, is taken to overlap with the Pre-Pottery Neolithic of 10,200–8800 BC. As the Natufians had become dependent on wild cereals in their diet, a sedentary way of life had begun among them, the climatic changes associated with the Younger Dryas are thought to have forced people to develop farming. By 10,200–8800 BC farming communities had arisen in the Levant and spread to Asia Minor, North Africa and North Mesopotamia. Mesopotamia is the site of the earliest developments of the Neolithic Revolution from around 10,000 BC. Early Neolithic farming was limited to a narrow range of plants, both wild and domesticated, which included einkorn wheat and spelt, the keeping of dogs and goats. By about 6900–6400 BC, it included domesticated cattle and pigs, the establishment of permanently or seasonally inhabited settlements, the use of pottery. Not all of these cultural elements characteristic of the Neolithic appeared everywhere in the same order: the earliest farming societies in the Near East did not use pottery.
In other parts of the world, such as Africa, South Asia and Southeast Asia, independent domestication events led to their own regionally distinctive Neolithic cultures, which arose independently of those in Europe and Southwest Asia. Early Japanese societies and other East Asian cultures used pottery before developing agriculture. In the Middle East, cultures identified as Neolithic began appearing in the 10th millennium BC. Early development occurred from there spread eastwards and westwards. Neolithic cultures are attested in southeastern Anatolia and northern Mesopotamia by around 8000 BC; the prehistoric Beifudi site near Yixian in Hebei Province, contains relics of a culture contemporaneous with the Cishan and Xinglongwa cultures of about 6000–5000 BC, neolithic cultures east of the Taihang Mountains, filling in an archaeological gap between the two Northern Chinese cultures. The total excavated area is more than 1,200 square yards, the collection of neolithic findings at the site encompasses two phases.
The Neolithic 1 period began around 10,000 BC in the Levant. A temple area in southeastern Turkey at Göbekli Tepe, dated to around 9500 BC, may be regarded as the beginning of the period; this site was developed by nomadic hunter-gatherer tribes, as evidenced by the lack of permanent housing in the vicinity, may be the oldest known human-made place of worship. At least seven stone circles, covering 25 acres, contain limestone pillars carved with animals and birds. Stone tools were used by as many as hundreds of people to create the pillars, which might have supported roofs. Other early PPNA sites dating to around 9500–9000 BC have been found in Jericho, West Bank, Gilgal in the Jordan Valley, Byblos, Lebanon; the start of Neolithic 1 overlaps the Heavy Neolithic periods to some degree. The major advance of Neolithic 1 was true farming. In the proto-Neolithic Natufian cultures, wild cereals were harvested, early seed selection and re-seeding occurred; the grain was ground into flour. Emmer wheat was domesticated, animals were herded and domesticated.
In 2006, remains of figs were discovered in a house in Jericho dated to 9400 BC. The figs are of a mutant variety that cannot be pollinated by insects, therefore the trees can only reproduce from cuttings; this evidence suggests that figs were the first cultivated crop and mark the invention of the technology of farming. This occurred centuries before the first cultivation of grains. Settlements became more permanent, with circular houses, much like those of the Natufians, with single rooms. However, these houses were for the first time made of mudbrick; the settlement had a surrounding stone wall and a stone tower. The wall served as protection from nearby groups, as protection from floods, or to keep animals penned; some of the enclosures suggest grain and meat storage. The Neolithic 2 began around 8800 BC according to the ASPRO chronology in the Levant; as with the PPNA dates, there are two versions from the same laboratories noted above. This system of terminology, however, is not convenient for southeast Anatolia and settlements of the middle Anatolia basin.
A settlement of 3,000 inhabitants was found in th
In stream restoration, river engineering or coastal engineering, revetments are sloping structures placed on banks or cliffs in such a way as to absorb the energy of incoming water. In military engineering they are structures, again sloped, formed to secure an area from artillery, bombing, or stored explosives. River or coastal revetments are built to preserve the existing uses of the shoreline and to protect the slope, as defense against erosion. Many revetments are used to line the banks of freshwater rivers and man-made reservoirs to prevent damage during periods of floods or heavy seasonal rains. Many materials may be used: wooden piles, loose-piled boulders or concrete shapes, or more solid banks. Concrete revetments are the most common type of infrastructure used to control the Mississippi River. More than 1,000 miles of concrete matting has been placed in river bends between Cairo and the Gulf of Mexico to slow the natural erosion that would otherwise change small parts of the river's course.
Revetments are used as a low-cost solution for coastal erosion defence in areas where crashing waves may otherwise deplete the coastline. Wooden revetments are made of planks laid against wooden frames so that they disrupt the force of the water. Although once popular, the use of wooden revetments has been replaced by modern concrete-based defence structures such as tetrapods. In coastal engineering, a tetrapod is a four-legged concrete structure used as armour unit on breakwaters; the tetrapod's shape is designed to dissipate the force of incoming waves by allowing water to flow around rather than against it, to reduce displacement by allowing a random distribution of tetrapods to mutually interlock. According to the U. S. National Park Service, referring to their employment in the American Civil War, a revetment is defined as a "retaining wall constructed to support the interior slope of a parapet. Made of logs, wood planks, fence rails, gabions, sods, or stones, the revetment provided additional protection from enemy fire, most kept the interior slope nearly vertical.
Stone revetments survive. A few log revetments have been preserved due to cypress and porous sandy soils. After an entrenchment was abandoned, many log or rail revetments were scavenged for other uses, causing the interior slope to slump more quickly. An interior slope will appear more vertical if the parapet eroded with the revetment still in place." Revetment Riparian zone Riparian-zone restoration Seawall Riprap Pisa Revetment Gabion Revetment EPA - River Bend Project Levee and Revetment Routine Maintenance US DOT - Design of Riprap Revetment
The Bronze Age is a historical period characterized by the use of bronze, in some areas proto-writing, other early features of urban civilization. The Bronze Age is the second principal period of the three-age Stone-Bronze-Iron system, as proposed in modern times by Christian Jürgensen Thomsen, for classifying and studying ancient societies. An ancient civilization is defined to be in the Bronze Age either by producing bronze by smelting its own copper and alloying with tin, arsenic, or other metals, or by trading for bronze from production areas elsewhere. Bronze itself is harder and more durable than other metals available at the time, allowing Bronze Age civilizations to gain a technological advantage. Copper-tin ores are rare, as reflected in the fact that there were no tin bronzes in Western Asia before trading in bronze began in the third millennium BC. Worldwide, the Bronze Age followed the Neolithic period, with the Chalcolithic serving as a transition. Although the Iron Age followed the Bronze Age, in some areas, the Iron Age intruded directly on the Neolithic.
Bronze Age cultures differed in their development of the first writing. According to archaeological evidence, cultures in Mesopotamia and Egypt developed the earliest viable writing systems; the overall period is characterized by widespread use of bronze, though the place and time of the introduction and development of bronze technology were not universally synchronous. Human-made tin bronze technology requires set production techniques. Tin must be mined and smelted separately added to molten copper to make bronze alloy; the Bronze Age was a time of developing trade networks. A 2013 report suggests that the earliest tin-alloy bronze dates to the mid-5th millennium BC in a Vinča culture site in Pločnik, although this culture is not conventionally considered part of the Bronze Age; the dating of the foil has been disputed. Western Asia and the Near East was the first region to enter the Bronze Age, which began with the rise of the Mesopotamian civilization of Sumer in the mid 4th millennium BC.
Cultures in the ancient Near East practiced intensive year-round agriculture, developed a writing system, invented the potter's wheel, created a centralized government, written law codes and nation states and empires, embarked on advanced architectural projects, introduced social stratification and civil administration and practiced organized warfare and religion. Societies in the region laid the foundations for astronomy and astrology. Dates are approximate, consult particular article for details The Ancient Near East Bronze Age can be divided as following: The Hittite Empire was established in Hattusa in northern Anatolia from the 18th century BC. In the 14th century BC, the Hittite Kingdom was at its height, encompassing central Anatolia, southwestern Syria as far as Ugarit, upper Mesopotamia. After 1180 BC, amid general turmoil in the Levant conjectured to have been associated with the sudden arrival of the Sea Peoples, the kingdom disintegrated into several independent "Neo-Hittite" city-states, some of which survived until as late as the 8th century BC.
Arzawa in Western Anatolia during the second half of the second millennium BC extended along southern Anatolia in a belt that reaches from near the Turkish Lakes Region to the Aegean coast. Arzawa was the western neighbor – sometimes a rival and sometimes a vassal – of the Middle and New Hittite Kingdoms; the Assuwa league was a confederation of states in western Anatolia, defeated by the Hittites under an earlier Tudhaliya I, around 1400 BC. Arzawa has been associated with the much more obscure Assuwa located to its north, it bordered it, may be an alternative term for it. In Ancient Egypt the Bronze Age begins in the Protodynastic period, c. 3150 BC. The archaic early Bronze Age of Egypt, known as the Early Dynastic Period of Egypt follows the unification of Lower and Upper Egypt, c. 3100 BC. It is taken to include the First and Second Dynasties, lasting from the Protodynastic Period of Egypt until about 2686 BC, or the beginning of the Old Kingdom. With the First Dynasty, the capital moved from Abydos to Memphis with a unified Egypt ruled by an Egyptian god-king.
Abydos remained the major holy land in the south. The hallmarks of ancient Egyptian civilization, such as art and many aspects of religion, took shape during the Early Dynastic period. Memphis in the Early Bronze Age was the largest city of the time; the Old Kingdom of the regional Bronze Age is the name given to the period in the 3rd millennium BC when Egypt attained its first continuous peak of civilization in complexity and achievement – the first of three "Kingdom" periods, which mark the high points of civilization in the lower Nile Valley. The First Intermediate Period of Egypt described as a "dark period" in ancient Egyptian history, spanned about 100 years after the end of the Old Kingdom from about 2181 to 2055 BC. Little monumental evidence survives from this period from the early part of it; the First Intermediate Period was a dynamic time when the rule of Egypt was divided between two competing power bases: Heracleopolis in Lower Egypt and Thebes in Upper Egypt. These two kingdoms would come into conflict, with the Theban kings conquering the north, resulting in the reunification of Egypt under a single ruler during the second part of the 11th Dynasty.
The Middle Kingdom of Egypt laste
A dolmen or cromlech is a type of single-chamber megalithic tomb consisting of two or more vertical megaliths supporting a large flat horizontal capstone or "table". Most date from the early Neolithic and were sometimes covered with earth or smaller stones to form a tumulus. Small pad-stones may be wedged between supporting stones to achieve a level appearance. In many instances, the covering has weathered away, leaving only the stone "skeleton" of the mound intact, it remains unclear. The oldest known are found in Western Europe. Archaeologists still do not know who erected these dolmens, which makes it difficult to know why they did it, they are all regarded as tombs or burial chambers, despite the absence of clear evidence for this. Human remains, sometimes accompanied by artefacts, have been found in or close to the dolmens which could be scientifically dated using radiocarbon dating. However, it has been impossible to prove that these remains date from the time when the stones were set in place.
The word dolmen has an unclear history. The word entered archaeology when Théophile Corret de la Tour d'Auvergne used it to describe megalithic tombs in his Origines gauloises using the spelling dolmin; the Oxford English Dictionary does not mention "dolmin" in English and gives its first citation for "dolmen" from a book on Brittany in 1859, describing the word as "The French term, used by some English authors, for a cromlech...". The name was derived from a Breton language term meaning "stone table" but doubt has been cast on this, the OED describes its origin as "Modern French". A book on Cornish antiquities from 1754 said that the current term in the Cornish language for a cromlech was tolmen and the OED says that "There is reason to think that this was the term inexactly reproduced by Latour d'Auvergne as dolmen, misapplied by him and succeeding French archaeologists to the cromlech". Nonetheless it has now replaced cromlech as the usual English term in archaeology, when the more technical and descriptive alternatives are not used.
Dolmens are known by a variety of names in other languages, including Irish: dolmain and Portuguese: anta, Bulgarian: Долмени Dolmeni, German: Hünengrab/Hünenbett and Dutch: hunebed, Basque: trikuharri, Abkhazian: Adamra, Adyghe Ispun, dysse, dös, Korean: 고인돌 goindol, "dol", "dolmaengi", Hebrew: גַלעֵד. Granja is used in Portugal and Spain; the rarer forms anta and ganda appear. In the Basque Country, they are attributed to a race of giants; the etymology of the German: Hünenbett, Hünengrab and Dutch: hunebed - with Hüne/hune meaning "giant" - all evoke the image of giants buried there. Of other Celtic languages, Welsh: cromlech was borrowed into English and quoit is used in English in Cornwall. Great dolmen Passage grave Polygonal dolmen Rectangular, enlarged or extended dolmen Simple dolmen Holcombe, Charles. A History of East Asia: From the Origins of Civilization to the Twenty-First Century. Cambridge University Press. ISBN 978-0-521-51595-5. Piccolo, Salvatore. Ancient Stones: The Prehistoric Dolmens of Sicily.
Thornham/Norfolk: Brazen Head Publishing. ISBN 978-0-9565106-2-4. Murphy, Cornelius; the Prehistoric Archaeology of the Beara Peninsula, Co. Cork. Department of Archaeology, University College Cork, 1997 Trifonov, V. 2006. Russia's megaliths: unearthing the lost prehistoric tombs of Caucasian warlords in the Zhane valley. St. Petersburg: The Institute for Study of Material Culture History, Russian Academy of Sciences. Available from Kudin, M. 2001. Dolmeni i ritual. Dolmen Path – Russian Megaliths. Available from Knight, Peter. Ancient Stones of Dorset, 1996. World heritage site of dolmen in Korea Piccolo, Salvatore. "Dolmen." Ancient History Encyclopedia. The Megalithic Portal and Megalith Map Dolmen Museum in Italian and English Goindol: Dolmen of Korea Research Centre of Dolmens in Northeast Asia Poulnabrone Dolmen in the Burren, County Clare, Ireland "Dolmen sites in Korea". on UNESCO's World Heritage List. Jersey Heritage Trust Dolmen Pictures by Robert Triest