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Pre-Nuragic Sardinia
The Pre-Nuragic period refers to the prehistory of Sardinia from the Paleolithic until the middle Bronze Age, when the Nuragic civilization flourished on the island. Paleolithic The discovery of Paleolithic lithic workshops indicate a human presence in Sardinia in the period between 450,000 and 10,000 years ago. According to the researchers, a hominid nicknamed "Nur" was the first to colonize the current territory of the island about 250,000 years ago, in the Lower Paleolithic; based on studies of a phalanx found in the Nùrighe caves of Cheremule, the researchers supposed that he may have been a pre- Neanderthal, but some have expressed doubts, assuming a morphological distance from hominids. During the last ice age sea levels were lower by about 130 meters; at that time Sardinia and Corsica formed a single large island, separated from Tuscany only by a narrow arm of sea. The oldest remains of '' Homo sapiens'' in Sardinia date back to the Upper Paleolithic; their track ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menhir Monte Corru Tundu Sardinia
A menhir (from Brittonic languages: ''maen'' or ''men'', "stone" and ''hir'' or ''hîr'', "long"), standing stone, orthostat, or lith is a large human-made upright rock (geology), stone, typically dating from the European middle Bronze Age. They can be found individually as monoliths, or as part of a group of similar stones. Menhirs' size can vary considerably, but they often taper toward the top. They are widely distributed across Europe, Africa and Asia, but are most numerous in Western Europe; particularly in Ireland, Great Britain, and Brittany, where there are about 50,000 examples, and northwestern France, where there are some 1,200 further examples. Standing stones are usually difficult to date. They were constructed during many different periods across pre-history as part of the larger megalithic cultures in Europe and near areas. Some menhirs stand next to buildings that have an early or current religious significance. One example is the South Zeal Menhir in Devon, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laerru
Laerru ( sc, Laìrru) is a ''comune'' (municipality) in the Province of Sassari in the Italian region Sardinia, located about north of Cagliari and about northeast of Sassari Sassari (, ; sdc, Sàssari ; sc, Tàtari, ) is an Italian city and the second-largest of Sardinia in terms of population with 127,525 inhabitants, and a Functional Urban Area of about 260,000 inhabitants. One of the oldest cities on the island .... Laerru borders the following municipalities: Bulzi, Martis, Nulvi, Perfugas, Sedini. References Cities and towns in Sardinia {{Sardinia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farming
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Sheep, goats, pigs and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture. The major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials (such as rubber). Food classes include cereals ( grains), vegetables, fruits, cooking oils, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wild Boar
The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species is now one of the widest-ranging mammals in the world, as well as the most widespread suiform. It has been assessed as least concern on the IUCN Red List due to its wide range, high numbers, and adaptability to a diversity of habitats. It has become an invasive species in part of its introduced range. Wild boars probably originated in Southeast Asia during the Early Pleistocene and outcompeted other suid species as they spread throughout the Old World. , up to 16 subspecies are recognized, which are divided into four regional groupings based on skull height and lacrimal bone length. The species lives in matriarchal societies consisting of interrelated females and their young (both male and female). Fully grown males are usually solitary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prolagus Sardus
The Sardinian pika (''Prolagus sardus'') is an extinct species of pika that was endemic to the islands of Sardinia, Corsica and neighbouring Mediterranean islands until its extinction likely in Ancient Rome, Roman times. Unlike living pikas, which all belong to the genus ''Ochotona,'' the Sardinian pika was the last surviving member of the genus ''Prolagus,'' a genus of pika once widespread throughout western Eurasia and North Africa during the Miocene and Pliocene epochs. Anatomy The full skeletal structure of the Sardinian pika was reconstructed in 1967, thanks to the numerous finds of bones in Corbeddu Cave, which is near Oliena, Sardinia. Some years later, from these remains, the same researchers led by paleontologist Mary R. Dawson from the US were able to create a plaster reconstruction with good accuracy. The Sardinian pika was probably much stockier and more robust than extant species of pikas, and it probably resembled a sort of cross between a large wild rabbit and a pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deer
Deer or true deer are hoofed ruminant mammals forming the family Cervidae. The two main groups of deer are the Cervinae, including the muntjac, the elk (wapiti), the red deer, and the fallow deer; and the Capreolinae, including the reindeer (caribou), white-tailed deer, the roe deer, and the moose. Male deer of all species (except the water deer), as well as female reindeer, grow and shed new antlers each year. In this they differ from permanently horned antelope, which are part of a different family ( Bovidae) within the same order of even-toed ungulates (Artiodactyla). The musk deer (Moschidae) of Asia and chevrotains ( Tragulidae) of tropical African and Asian forests are separate families that are also in the ruminant clade Ruminantia; they are not especially closely related to Cervidae. Deer appear in art from Paleolithic cave paintings onwards, and they have played a role in mythology, religion, and literature throughout history, as well as in herald ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monte Arci
The Monte Arci is an isolated massif in the Uras plain in Campidano, south-western Sardinia, Italy. It is composed by three volcanic basalt towers, the highest one reaching an elevation of 812 m. The inner part of the massif is composed of trachyte. Monte Arci is located just west of the Giara di Gesturi, a basaltic plateau. Monte Arci had a relevant historical role in Sardinia due to the abundant presence of obsidian, which was used since prehistoric times for weapons and tools, and was later traded outside the island. There are also quarries of pearlite. In the territory of Morgongiori there are breeds of Giara horse The Giara horse ( Sardinian: ''Cuaddeddu de sa Jara'', it, Cavallino della Giara) is a horse breed native to the island of Sardinia. It is one of the fifteen indigenous horse "breeds of limited distribution" recognised by the AIA, the It ...s. {{Authority control Arci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obsidian
Obsidian () is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock. Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. It is commonly found within the margins of rhyolitic lava flows known as obsidian flows. These flows have a high content of silica, granting them a high viscosity. The high viscosity inhibits diffusion of atoms through the lava, which inhibits the first step ( nucleation) in the formation of mineral crystals. Together with rapid cooling, this results in a natural glass forming from the lava. Obsidian is hard, brittle, and amorphous; it therefore fractures with sharp edges. In the past, it was used to manufacture cutting and piercing tools, and it has been used experimentally as surgical scalpel blades. Origin and properties The '' Natural History'' by the Roman writer Pliny the Elder inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerastoderma Edule
The common cockle (''Cerastoderma edule'') is a species of edible saltwater clam, a marine bivalve mollusc in the family Cardiidae, the cockles. It is found in waters off Europe, from Iceland in the north, south into waters off western Africa as far south as Senegal. The ribbed oval shells can reach across and are white, yellowish or brown in colour. The common cockle is harvested commercially and eaten in much of its range. Taxonomy and naming The common cockle was one of the many invertebrate species originally described by Carl Linnaeus in the landmark 1758 10th edition of '' Systema Naturae'', where it was given its old binomial name ''Cardium edule''. The species name is derived from the Latin adjective ''ĕdūlis'' "edible". Italian naturalist Giuseppe Saverio Poli erected the genus '' Cerastoderma'' in 1795, making the common cockle the type species as ''Cerastoderma edule''. The genus name is derived from the Ancient Greek words ''keras'' "horn" and ''derma'' "skin". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6th Millennium BC
The 6th millennium BC spanned the years 6000 BC to 5001 BC (c. 8 ka to c. 7 ka). It is impossible to precisely date events that happened around the time of this millennium and all dates mentioned here are estimates mostly based on geological and anthropological analysis. The only exceptions are the felling dates for some construction timbers from neolithic wells in Central Europe. This millennium is reckoned to mark the end of the global deglaciation which had followed the Last Glacial Maximum and caused sea levels to rise by some over a period of about 5,000 years. Communities Neolithic culture and technology had spread from the Near East and into eastern Europe by 6000 BC. Its development in the Far East grew apace and there is increasing evidence through the millennium of its presence in Prehistoric Egypt and the Far East. In much of the world, however, including north and western Europe, people still lived in scattered Palaeolithic hunter-gatherer communities. The w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obsidian Diffusion Mediterranean Map
Obsidian () is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock. Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. It is commonly found within the margins of rhyolitic lava flows known as obsidian flows. These flows have a high content of silica, granting them a high viscosity. The high viscosity inhibits diffusion of atoms through the lava, which inhibits the first step (nucleation) in the formation of mineral crystals. Together with rapid cooling, this results in a natural glass forming from the lava. Obsidian is hard, brittle, and amorphous; it therefore fractures with sharp edges. In the past, it was used to manufacture cutting and piercing tools, and it has been used experimentally as surgical scalpel blades. Origin and properties The '' Natural History'' by the Roman writer Pliny the Elder includes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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