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Ocher
Ochre ( ; , ), or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. It ranges in colour from yellow to deep orange or brown. It is also the name of the colours produced by this pigment, especially a light brownish-yellow. A variant of ochre containing a large amount of hematite, or dehydrated iron oxide, has a reddish tint known as "red ochre" (or, in some dialects, ruddle). The word ochre also describes clays coloured with iron oxide derived during the extraction of tin and copper. Earth pigments Ochre is a family of earth pigments, which includes yellow ochre, red ochre, purple ochre, sienna, and umber. The major ingredient of all the ochres is iron(III) oxide-hydroxide, known as limonite, which gives them a yellow colour. * Yellow ochre, , is a hydrated iron hydroxide (limonite) also called gold ochre. * Red ochre, , takes its reddish colour from the mineral hematite, which is an anhydrous iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umber
Umber is a natural brown earth pigment that contains iron oxide and manganese oxide. In its natural form, it is called raw umber. When Calcination, calcined, the color becomes warmer and it becomes known as burnt umber. Its name derives from ''terra d'ombra'', or earth of Umbria, the Italian name of the pigment. Umbria is a mountainous region in central Italy where the pigment was originally extracted. The word also may be related to the Latin word ''umbra'', meaning "shadow". Umber is not one precise color, but a range of different colors, from medium to dark in value, from greenish to reddish in hue. The color of the natural earth depends primarily upon the proportions of iron oxide and manganese in the clay. Umber earth pigments contain between five and twenty percent manganese oxide, which accounts for their being a darker and less saturated color than the related earth pigment, sienna. Commercial umber pigments vary in color depending on their origin and how they are proces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxin
A toxin is a naturally occurring organic poison produced by metabolic activities of living cells or organisms. Toxins occur especially as a protein or conjugated protein. The term toxin was first used by organic chemist Ludwig Brieger (1849–1919) and is derived from the word toxic. Toxins can be small molecules, peptides, or proteins that are capable of causing disease on contact with or absorption by body tissues interacting with biological macromolecules such as enzymes or cellular receptors. Toxins vary greatly in their toxicity, ranging from usually minor (such as a bee sting) to potentially fatal even at extremely low doses (such as botulinum toxin). Toxins are largely secondary metabolites, which are organic compounds that are not directly involved in an organism's growth, development, or reproduction, instead often aiding it in matters of defense. Terminology Toxins are often distinguished from other chemical agents strictly based on their biological origin. Le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picts
The Picts were a group of peoples who lived in what is now northern and eastern Scotland (north of the Firth of Forth) during Late Antiquity and the Early Middle Ages. Where they lived and what their culture was like can be inferred from early medieval texts and Pictish stones. Their Latin name, , appears in written records from the 3rd to the 10th century. Early medieval sources report the existence of a distinct Pictish language, which today is believed to have been an Insular Celtic language, closely related to the Common Brittonic, Brittonic spoken by the Celtic Britons, Britons who lived to the south. Picts are assumed to have been the descendants of the Caledonians, Caledonii and other British Iron Age, Iron Age tribes that were mentioned by Roman historians or on the Ptolemy's world map, world map of Ptolemy. The Pictish kingdom, often called Pictland in modern sources, achieved a large degree of political unity in the late 7th and early 8th centuries through the expa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurignacian
The Aurignacian () is an archaeological industry of the Upper Paleolithic associated with European early modern humans (EEMH) lasting from 43,000 to 26,000 years ago. The Upper Paleolithic developed in Europe some time after the Levant, where the Emiran period and the Ahmarian period form the first periods of the Upper Paleolithic, corresponding to the first stages of the expansion of ''Homo sapiens'' out of Africa. They then migrated to Europe and created the first European culture of modern humans, the Aurignacian. An Early Aurignacian or Proto-Aurignacian stage is dated between about 43,000 and 37,000 years ago. The Aurignacian proper lasts from about 37,000 to 33,000 years ago. A Late Aurignacian phase transitional with the Gravettian dates to about 33,000 to 26,000 years ago. The type site is the Cave of Aurignac, Haute-Garonne, south-west France. The main preceding period is the Mousterian of the ''Neanderthals''. One of the oldest examples of figurative art, the Venus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Goddess Hypothesis
The Great Goddess hypothesis theorizes that, in Palaeolithic, Mesolithic and/or Neolithic Europe and Western Asia and North Africa, a singular, monotheistic female deity was worshipped. Development of the theory The theory had been first proposed by the German Classicist Eduard Gerhard in 1849, when he speculated that the various goddesses found in ancient Greek paganism had been representations of a singular goddess who had been worshipped far further back into prehistory. He associated this deity with the concept of Mother Earth, which itself had only been developed in the 18th century by members of the Romanticist Movement. Soon after, this theory began to be adopted by other classicists in France and Germany, such as Ernst Kroker, Fr. Lenormant and M.J. Menant, who further brought in the idea that the ancient peoples of Anatolia and Mesopotamia had influenced the Greek religion, and that therefore they also had once venerated a great goddess.Hutton, Ronald (1999). ''The Tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lascaux
Lascaux ( , ; french: Grotte de Lascaux , "Lascaux Cave") is a network of caves near the village of Montignac, in the department of Dordogne in southwestern France. Over 600 parietal wall paintings cover the interior walls and ceilings of the cave. The paintings represent primarily large animals, typical local contemporary fauna that correspond with the fossil record of the Upper Paleolithic in the area. They are the combined effort of many generations and, with continued debate, the age of the paintings is now usually estimated at around 17,000 years (early Magdalenian). Because of the outstanding prehistoric art in the cave, Lascaux was inducted into the UNESCO World Heritage List in 1979, as an element of the ''Prehistoric Sites and Decorated Caves of the Vézère Valley''. The original caves have been closed to the public since 1963, as their condition was deteriorating, but there are now a number of replicas. History since rediscovery On 12 September 1940, the entra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave Of Altamira
The Cave of Altamira (; es, Cueva de Altamira ) is a cave complex, located near the historic town of Santillana del Mar in Cantabria, Spain. It is renowned for prehistoric cave art featuring charcoal drawings and polychrome paintings of contemporary local fauna and human hands. The earliest paintings were applied during the Upper Paleolithic, around 36,000 years ago. The site was discovered in 1868 by Modesto Cubillas and subsequently studied by Marcelino Sanz de Sautuola. Aside from the striking quality of its polychromatic art, Altamira's fame stems from the fact that its paintings were the first European cave paintings for which a prehistoric origin was suggested and promoted. Sautuola published his research with the support of Juan de Vilanova y Piera in 1880, to initial public acclaim. However, the publication of Sanz de Sautuola's research quickly led to a bitter public controversy among experts, some of whom rejected the prehistoric origin of the paintings on the ground ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pech Merle
Pech Merle is a cave which opens onto a hillside at Cabrerets in the Lot département of the Occitania region in France, about 32 km by road east of Cahors. It is one of the few prehistoric cave painting sites in France that remain open to the general public. Extending over 2 kilometres over two levels, of which only are open to the public, are caverns, wells and sloping tunnels, the walls of which are painted with dramatic murals dating from the Gravettian culture (some 25,000 years BC). Some of the paintings and engravings, however, may date from the later Magdalenian era (16,000 years BC). This cave was created over 2 million years ago by an underground river, cutting channels which were later used by humans for shelter and eventually for mural painting. The galleries are mostly dry, 10 meters wide on average. The height under the vault is between 5 and 10 meters high. The cave art located in the deeper areas of the cave was discovered in 1922 by Marthe David, age 13; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Lady Of Paviland
The Red Lady of Paviland is an Upper Paleolithic partial skeleton of a male dyed in red ochre and buried in Wales 33,000 BP. The bones were discovered in 1823 by William Buckland in an archaeological dig at Goat's Hole Cave (Paviland cave) – one of the limestone caves between Port Eynon and Rhossili on the Gower Peninsula, Swansea, south Wales. The remains were at first thought to be a Roman-era female, but more recent analysis indicates the bones are of a young male. Goat's Hole was occupied throughout prehistory. Artefacts are predominantly Aurignacian, but also include examples from the earlier Mousterian, and later Gravettian and Creswellian periods. The site is the oldest known ceremonial burial in Western Europe. Discovery In 1822 Daniel Davies and the Rev John Davies found animal bones, including the tusk of a mammoth. The Talbot family of Penrice Castle was informed and found "bones of elephants" on 27 December 1822. William Buckland, Professor of Geology at Oxford ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleolithic
The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone tools, and which represents almost the entire period of human prehistoric technology. It extends from the earliest known use of stone tools by hominins, 3.3 million years ago, to the end of the Pleistocene, 11,650 cal BP. The Paleolithic Age in Europe preceded the Mesolithic Age, although the date of the transition varies geographically by several thousand years. During the Paleolithic Age, hominins grouped together in small societies such as bands and subsisted by gathering plants, fishing, and hunting or scavenging wild animals. The Paleolithic Age is characterized by the use of knapped stone tools, although at the time humans also used wood and bone tools. Other organic commodities were adapted for use as tools, includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provence
Provence (, , , , ; oc, Provença or ''Prouvènço'' , ) is a geographical region and historical province of southeastern France, which extends from the left bank of the lower Rhône to the west to the Italian border to the east; it is bordered by the Mediterranean Sea to the south. It largely corresponds with the modern administrative region of Provence-Alpes-Côte d'Azur and includes the departments of Var, Bouches-du-Rhône, Alpes-de-Haute-Provence, as well as parts of Alpes-Maritimes and Vaucluse.''Le Petit Robert, Dictionnaire Universel des Noms Propres'' (1988). The largest city of the region and its modern-day capital is Marseille. The Romans made the region the first Roman province beyond the Alps and called it ''Provincia Romana'', which evolved into the present name. Until 1481 it was ruled by the Counts of Provence from their capital in Aix-en-Provence, then became a province of the Kings of France. While it has been part of France for more than 500 years, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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