1.
Black Sea
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The Black Sea is a body of water between Eastern Europe and Western Asia, bounded by Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine. It is supplied by a number of rivers, such as the Danube, Dnieper, Rioni, Southern Bug. The Black Sea has an area of 436,400 km2, a depth of 2,212 m. It is constrained by the Pontic Mountains to the south and by the Caucasus Mountains to the east, the longest east-west extent is about 1,175 km. The Black Sea has a water balance, that is, a net outflow of water 300 km3 per year through the Bosphorus. Mediterranean water flows into the Black Sea as part of a two-way hydrological exchange, the Black Sea drains into the Mediterranean Sea and then the Atlantic Ocean, via the Aegean Sea and various straits. The Bosphorus Strait connects it to the Sea of Marmara, and these waters separate Eastern Europe and Western Asia. The Black Sea is also connected to the Sea of Azov by the Strait of Kerch, the water level has varied significantly. Due to these variations in the level in the basin. At certain critical water levels it is possible for connections with surrounding water bodies to become established and it is through the most active of these connective routes, the Turkish Straits, that the Black Sea joins the world ocean. When this hydrological link is not present, the Black Sea is a basin, operating independently of the global ocean system. Currently the Black Sea water level is high, thus water is being exchanged with the Mediterranean. The Turkish Straits connect the Black Sea with the Aegean Sea, and comprise the Bosphorus, the Sea of Marmara, the International Hydrographic Organization defines the limits of the Black Sea as follows, On the Southwest. The Northeastern limit of the Sea of Marmara, a line joining Cape Takil and Cape Panaghia. Strabos Geographica reports that in antiquity, the Black Sea was often just called the Sea, for the most part, Graeco-Roman tradition refers to the Black Sea as the Hospitable sea, Εὔξεινος Πόντος Eúxeinos Póntos. This is a euphemism replacing an earlier Inhospitable Sea, Πόντος Ἄξεινος Póntos Áxeinos, strabo thinks that the Black Sea was called inhospitable before Greek colonization because it was difficult to navigate, and because its shores were inhabited by savage tribes. The name was changed to hospitable after the Milesians had colonized the southern shoreline and it is also possible that the epithet Áxeinos arose by popular etymology from a Scythian word axšaina- unlit, dark, the designation Black Sea may thus date from antiquity. A map of Asia dating to 1570, entitled Asiae Nova Descriptio, from Abraham Orteliuss Theatrum Orbis Terrarum, english-language writers of the 18th century often used the name Euxine Sea to refer to the Black Sea
2.
Iberians
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The Iberians were a set of peoples that Greek and Roman sources identified with that name in the eastern and southern coasts of the Iberian peninsula, at least from the 6th century BC. The Roman sources also use the term Hispani to refer to the Iberians, the term Iberian, as used by the ancient authors, had two distinct meanings. One, more general, referred to all the populations of the Iberian peninsula without regard to ethnic differences and this non-Indo-European cultural group spoke the Iberian language from the 7th to the 1st century BC. Other peoples possibly related to the Iberians are the Vascones, though related to the Aquitani than to the Iberians. The Iberian culture developed from the 6th century BC, and perhaps as early as the fifth to the third millennium BC in the eastern and southern coasts of the Iberian peninsula, the Iberians lived in villages and oppida and their communities were based on a tribal organization. The Iberians in the Spanish Levant, were more urbanized than their neighbors in the central, the peoples in the central and northwest regions were mostly Celtic, semi-pastoral and lived in scattered villages, though they also had a few fortified towns like Numantia. They had a knowledge of writing, metalworking, including bronze, in the centuries preceding Carthaginian and Roman conquest, Iberian settlements grew in social complexity, exhibiting evidence of social stratification and urbanization. This process was aided by trading contacts with the Phoenicians, Greeks. The settlement of Castellet de Banyoles in Tivissa was one of the most important ancient Iberian settlements in Catalonia that was discovered in 1912, also, the Treasure of Tivissa, a unique collection of silver Iberian votive offerings was found here in 1927. Lucentum was another ancient Iberian settlement, as well as Castelldefels Castle, mausoleum of Pozo Moro near the town of Chinchilla de Monte-Aragón in Castile-La Mancha seems to mark the location of another big settlement. Sagunto is the location of an ancient Iberian and later Roman city of Saguntum, Greek colonists made the first historical reference to the Iberians in the 6th century BC. They defined Iberians as non-Celtic peoples south of the Ebro river, the Greeks also dubbed as Iberians another people in the Caucasus region, currently known as Caucasian Iberians. It is not known if there had any type of connection between the two peoples. The Iberians traded extensively with other Mediterranean cultures, Iberian pottery and metalwork has been found in France, Italy, and North Africa. The Iberians had extensive contact with Greek colonists in the Spanish colonies of Emporion, Rhode, Zakynthos, the Iberians may have adopted some of the Greeks artistic techniques. Statues such as the Lady of Baza and the Lady of Elx are thought to have made by Iberians relatively well acquainted with Greek art. Thucydides stated that one of the three tribes of Sicily, the Sicani, were of Iberian origin, though Iberian at the time could have included what we think of as Gaul. The Iberians also had contacts with the Phoenicians, who had established colonies in southern Andalucia
3.
Stone Age
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The Stone Age was a broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface. The period lasted roughly 3.4 million years, and ended between 8700 BCE and 2000 BCE with the advent of metalworking, bone tools were used during this period as well but are rarely preserved in the archaeological record. The Stone Age is further subdivided by the types of tools in use. According to the age and location of the current evidence, the cradle of the genus is the East African Rift System, especially toward the north in Ethiopia, where it is bordered by grasslands. The closest relative among the living primates, the genus Pan, represents a branch that continued on in the deep forest. The rift served as a conduit for movement into southern Africa and also north down the Nile into North Africa and through the continuation of the rift in the Levant to the vast grasslands of Asia. The oldest indirect evidence found of stone tool use is fossilised animal bones with tool marks, the oldest stone tools were excavated from the site of Lomekwi 3 in West Turkana, northwestern Kenya, and date to 3.3 million years old. Prior to the discovery of these Lomekwian tools, the oldest known stone tools had been found at sites at Gona, Ethiopia, on the sediments of the paleo-Awash River. All the tools come from the Busidama Formation, which lies above a disconformity, or missing layer, the oldest sites containing tools are dated to 2. 6–2.55 mya. One of the most striking circumstances about these sites is that they are from the Late Pliocene, excavators at the locality point out that. the earliest stone tool makers were skilled flintknappers. The possible reasons behind this seeming abrupt transition from the absence of tools to the presence thereof include. The species who made the Pliocene tools remains unknown, fragments of Australopithecus garhi, Australopithecus aethiopicus and Homo, possibly Homo habilis, have been found in sites near the age of the Gona tools. Innovation of the technique of smelting ore ended the Stone Age, the first most significant metal manufactured was bronze, an alloy of copper and tin, each of which was smelted separately. The Chalcolithic by convention is the period of the Bronze Age. The Bronze Age was followed by the Iron Age, the transition out of the Stone Age occurred between 6000 BCE and 2500 BCE for much of humanity living in North Africa and Eurasia. Note the Rudna Glava mine in Serbia, Ötzi the Iceman, a mummy from about 3300 BCE carried with him a copper axe and a flint knife. In regions such as Sub-Saharan Africa, the Stone Age was followed directly by the Iron Age, the Middle East and southeastern Asian regions progressed past Stone Age technology around 6000 BCE. Europe, and the rest of Asia became post–Stone Age societies by about 4000 BCE, the proto-Inca cultures of South America continued at a Stone Age level until around 2000 BCE, when gold, copper and silver made their entrance
4.
Paleolithic
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It extends from the earliest known use of stone tools, probably by Homo habilis initially,2.6 million years ago, to the end of the Pleistocene around 10,000 BP. The Paleolithic era is followed by the Mesolithic, the date of the Paleolithic–Mesolithic boundary may vary by locality as much as several thousand years. During the Paleolithic period, humans grouped together in small societies such as bands, the Paleolithic 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, including leather and vegetable fibers, however, due to their nature, surviving artifacts of the Paleolithic era are known as paleoliths. About 50,000 years ago, there was a increase in the diversity of artifacts. For the first time in Africa, bone artifacts and the first art appear in the archaeological record, the first evidence of human fishing is also noted, from artifacts in places such as Blombos cave in South Africa. The new technology generated an explosion of modern humans which is believed to have led to the extinction of the Neanderthals. Humankind gradually evolved from members of the genus Homo—such as Homo habilis. The climate during the Paleolithic consisted of a set of glacial and interglacial periods in which the climate periodically fluctuated between warm and cool temperatures, by c. 50,000 – c. 40,000 BP, the first humans set foot in Australia. By c. 45,000 BP, humans lived at 61°N latitude in Europe, by c. 30,000 BP, Japan was reached, and by c. 27,000 BP humans were present in Siberia, above the Arctic Circle. At the end of the Upper Paleolithic, a group of humans crossed Beringia, the term Paleolithic was coined by archaeologist John Lubbock in 1865. It derives from Greek, παλαιός, palaios, old, and λίθος, lithos, stone, human evolution is the part of biological evolution concerning the emergence of anatomically modern humans as a distinct species. The Paleolithic Period coincides almost exactly with the Pleistocene epoch of geologic time and this epoch experienced important geographic and climatic changes that affected human societies. During the preceding Pliocene, continents had continued to drift from possibly as far as 250 km from their present locations to positions only 70 km from their current location. South America became linked to North America through the Isthmus of Panama, most of Central America formed during the Pliocene to connect the continents of North and South America, allowing fauna from these continents to leave their native habitats and colonize new areas. Africas collision with Asia created the Mediterranean Sea, cutting off the remnants of the Tethys Ocean, climates during the Pliocene became cooler and drier, and seasonal, similar to modern climates. The formation of an Arctic ice cap around 3 million years ago is signaled by a shift in oxygen isotope ratios and ice-rafted cobbles in the North Atlantic. Mid-latitude glaciation probably began before the end of the epoch, the global cooling that occurred during the Pliocene may have spurred on the disappearance of forests and the spread of grasslands and savannas
5.
Homo
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The genus is between 2 and 3 million years old, taken to emerge with the appearance of Homo habilis. It is derived from the genus Australopithecus, which itself had previously split from the lineage of Pan, taxonomically, Homo is the only genus assigned to the subtribe Hominina which, with the subtribes Australopithecina and Panina, comprise the tribe Hominini. All species of the genus Homo plus those species of the australopithecines that arose after the split from Pan are called hominins, Homo erectus appeared about two million years ago in East Africa and, in several early migrations, it spread throughout Africa and Eurasia. It was likely the first hominin to live in a hunter-gatherer society, the subspecies Homo sapiens sapiens or anatomically modern humans emerged about 200,000 years ago in East Africa. DNA analysis provides evidence of interbreeding between archaic and modern humans. See Hominidae for an overview of taxonomy, the Latin noun homō means human being or man in the generic sense of human being, mankind. The binomial name Homo sapiens was coined by Carl Linnaeus, names for other species of the genus were introduced beginning in the second half of the 19th century. Even today, the genus Homo has not been properly defined, since the early human fossil record began to slowly emerge from the earth, the boundaries and definitions of the genus Homo have been poorly defined and constantly in flux. Because there was no reason to think it would ever have any additional members, the discovery of Neanderthal brought the first addition. The genus Homo was given its name to suggest that its member species can be classified as human. Many such names are now dubbed as synonyms with Homo, including Pithecanthropus, Protanthropus, Sinanthropus, Cyphanthropus, Africanthropus, Telanthropus, Atlanthropus, classifying the genus Homo into species and subspecies is subject to incomplete information and remains poorly done. Some recently extinct species in the genus Homo are only recently discovered, john Edward Gray was an early advocate of classifying taxa by designating tribes and families. Several species, including Australopithecus garhi, Australopithecus sediba, Australopithecus africanus and these species have morphological features that align them with Homo, but there is no consensus as to which gave rise to Homo. The advent of Homo was traditionally taken to coincide with the first use of stone tools, the emergence of Homo also coincides roughly with the onset of Quaternary glaciation, the beginning of the current ice age. A fossil mandible fragment dated to 2.8 million years ago which may represent a stage between Australopithecus and Homo was discovered in 2015 in Afar, Ethiopia. Some authors would push the development of Homo past 3 Mya, the most salient physiological development between the earlier australopithecine species and Homo is the increase in cranial capacity, from about 450 cm3 in A. garhi to 600 cm3 in H. habilis. Within the genus Homo, cranial capacity again doubled from H. habilis through Homo ergaster or H. erectus to Homo heidelbergensis by 0.6 million years ago, the cranial capacity of H. heidelbergensis overlaps with the range found in modern humans. Homo erectus has often been assumed to have developed anagenetically from Homo habilis from about 2 million years ago
6.
Control of fire by early humans
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The control of fire by early humans was a turning point in the cultural aspect of human evolution. Fire provided a source of warmth, protection, and a method for cooking food and these cultural advancements allowed for human geographic dispersal, cultural innovations, and changes to diet and behavior. Additionally, creating fire allowed the expansion of activity to proceed into the dark. Claims for the earliest definitive evidence of control of fire by a member of Homo range from 0.2 to 1.7 million years ago, evidence for the controlled use of fire by Homo erectus, beginning some 600,000 years ago, has wide scholarly support. Evidence of widespread control of fire by anatomically modern humans dates to approximately 125,000 years ago, most of the evidence of controlled use of fire during the Lower Paleolithic is uncertain and has limited scholarly support. The inconclusiveness of some of the lies behind the fact that there exist other plausible explanations, such as natural processes. Recent findings strongly support that the earliest known controlled use of fire took place in Wonderwerk Cave, over time, early humans figured out how to create fire. Archaeological evidence, suggests that happened between 700,000 years ago and 120,000 years ago. Findings from the Wonderwerk Cave site, in the Northern Cape province of South Africa, east African sites, such as Chesowanja near Lake Baringo, Koobi Fora, and Olorgesailie in Kenya, show some possible evidence that fire was controlled by early humans. In Chesowanja archaeologists found red clay clasts dated to be from 1.4 Mya and these clasts must have been heated to 400 °C to harden. However, deliberate use of fire in Chesowanja is still debatable because there are reasons to believe that the burning of clay might have happened by chance. In Koobi Fora, sites FxJjzoE and FxJj50 show evidence of control of fire by Homo erectus at 1.5 Mya with findings of reddened sediment that could come from heating at 200–400 °C. A hearth-like depression that could have used to burn bones was found at a site in Olorgesailie. However, it did not contain any charcoal and no signs of fire have been observed, some microscopic charcoal was found, but it could have resulted from a natural brush fire. In Gadeb, Ethiopia, fragments of welded tuff that appeared to have been burned were found in Locality 8E, in the Middle Awash River Valley, cone-shaped depressions of reddish clay were found that could have been formed by temperatures of 200 °C. These features are thought to be burned tree stumps such that the early hominids could have fire away from their habitation site, burned stones are also found in Awash Valley, but volcanic welded tuff is also found in the area which could explain the burned stones. In Xihoudu in Shanxi Province, China, the black, blue, in 1985, a parallel site in China, Yuanmou in the Yunnan Province, archaeologists found blackened mammal bones which date back to 1.7 Mya BP. A site at Bnot Yaakov Bridge, Israel, has claimed to show that H. erectus or H. ergaster controlled fires between 790,000 and 690,000 BP
7.
Middle Stone Age
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The Middle Stone Age was a period of African prehistory between the Early Stone Age and the Later Stone Age. It is generally considered to have begun around 280,000 years ago, the beginnings of particular MSA stone tools have their origins as far back as 550–500,000 years ago and as such some researchers consider this to be the beginnings of the MSA. The MSA is associated with anatomically modern humans as well as archaic Homo sapiens, sometimes referred to as Homo helmei. Early physical evidence comes from the Gademotta Formation in Ethiopia, the Kapthurin Formation in Kenya and it is difficult to discuss the MSA of Africa without first considering the immense size of the continent. Preservation in these two regions are alternately superb and lamentable, yet the sites that have been uncovered document the adaptive nature of early hominins to climatically unstable environments. Eastern Africa represents some of the most reliable dates, due to the use of radiocarbon dating on volcanic ash deposits, faunal preservation, however, is not spectacular, and standardization in site excavation and lithic classification was, until recently, lacking. Central Africa reflects similar patterning to eastern Africa, yet more archaeological research of the region is certainly required, southern Africa consists of many cave sites, most of which show very punctuated starts and stops in stone tool technology. Research in southern Africa has been continuous and quite standardized, allowing for reliable comparisons between sites in the region. Much of the evidence for the origins of modern human behavior is traced back to sites in this region, including Blombos Cave, Howiesons Poort, Still Bay. The origins of the MSA are characterized in most regions by the Acheulian to MSA transition and this transition is considered to be a gradual process, rather than a singular event wherein hominin technologies advanced rapidly. Although the dates for this vary widely, the oldest reliably dated MSA site is Gademotta in Ethiopia at greater than 276 thousand years ago. The Middle Awash valley of Ethiopia and the Central Rift Valley of Kenya constituted a major center for behavioural innovation and this suggests a possible overlap of 100-150 thousand years. The Cave of Hearths and Montague Cave in South Africa contain evidence of Acheulian technologies, as well as later MSA technologies, Early blades have been documented as far back as 550-500,000 years in the Kapthurin Formation in Kenya and Kathu Pan in South Africa. Backed pieces from the Twin Rivers and Kalambo Falls sites in Zambia, a high level of technical competence is also indicated for the c.280 ka blades recovered from the Kapthurin Formation, Kenya. The stone tool technology in use during the Middle Stone Age shows a mosaic of techniques, however, the use of blades is seen at many sites as well. In Africa, blades may have used during the transition from the Early Stone Age to the Middle Stone Age onwards. Artifact technology during the Middle Stone Age shows a pattern of innovation followed by disappearance and this occurs with technology such as the manufacture of shell beads, arrows and hide working tools including needles, and gluing technology. These pieces of evidence provide a counterpoint to the classic Out of Africa scenario in which increasing complexity accumulated during the Middle Stone Age, perhaps only in small numbers initially, but by 30 ka they had replaced Neanderthals and H. erectus
8.
Upper Paleolithic
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The Upper Paleolithic is the third and last subdivision of the Paleolithic or Old Stone Age. Very broadly, it dates to between 50,000 and 10,000 years ago, roughly coinciding with the appearance of behavioral modernity, modern humans are believed to have emerged about 195,000 years ago in Africa. Although these humans were modern in anatomy, their lifestyle changed very little from their contemporaries, such as Homo erectus, about 50,000 years ago, there was a marked increase in the diversity of artifacts. In Africa, bone artifacts and the first art appear in the archeological record, between 45,000 and 43,000 years ago, this new tool technology spread with human migration to Europe. The new technology generated an explosion of modern humans which is believed to have contributed to the extinction of the Neanderthals. The Upper Paleolithic has the earliest known evidence of organized settlements, in the form of campsites, artistic work blossomed, with cave painting, petroglyphs, carvings and engravings on bone or ivory. The first evidence of fishing is also noted, from artifacts in places such as Blombos cave in South Africa. More complex social groupings emerged, supported by more varied and reliable food sources and this probably contributed to increasing group identification or ethnicity. By 50, 000–40,000 BP, the first humans set foot in Australia, by 45,000 BP, humans lived at 61° north latitude in Europe. By 30,000 BP, Japan was reached, and by 27,000 BP humans were present in Siberia above the Arctic Circle, at the end of the Upper Paleolithic, a group of humans crossed the Bering land bridge and quickly expanded throughout North and South America. Both Homo erectus and Neanderthals used the same crude stone tools, archaeologist Richard G. Klein, who has worked extensively on ancient stone tools, describes the stone tool kit of archaic hominids as impossible to categorize. It was as if the Neanderthals made stone tools, and were not much concerned about their final forms and he argues that almost everywhere, whether Asia, Africa or Europe, before 50,000 years ago all the stone tools are much alike and unsophisticated. These new stone-tool types have been described as being distinctly differentiated from each other, the invaders, commonly referred to as the Cro-Magnons, left many sophisticated stone tools, carved and engraved pieces on bone, ivory and antler, cave paintings and Venus figurines. The Neanderthals continued to use Mousterian stone tool technology and possibly Chatelperronian technology and these tools disappeared from the archeological record at around the same time the Neanderthals themselves disappeared from the fossil record, about 40,000 years ago. Settlements were often located in valley bottoms, possibly associated with hunting of passing herds of animals. Hunting was important, and caribou/wild reindeer may well be the species of single greatest importance in the anthropological literature on hunting. Technological advances included significant developments in flint tool manufacturing, with industries based on fine blades rather than simpler and shorter flakes, burins and racloirs were used to work bone, antler and hides. Advanced darts and harpoons also appear in period, along with the fish hook, the oil lamp, rope
9.
Spear-thrower
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A spear-thrower or atlatl is a tool that uses leverage to achieve greater velocity in dart-throwing, and includes a bearing surface which allows the user to store energy during the throw. It may consist of a shaft with a cup or a spur at the end that supports, the spear-thrower is held in one hand, gripped near the end farthest from the cup. The dart is thrown by the action of the upper arm, the throwing arm together with the atlatl acts as a lever. The spear-thrower is a low-mass, fast-moving extension of the throwing arm and this extra length allows the thrower to impart force to the dart over a longer distance, thus imparting more energy and ultimately higher speeds. Common modern ball throwers use the same principle, a spear-thrower is a long-range weapon and can readily impart to a projectile speeds of over 150 km/h. In the United States the Nahuatl word atlatl is often used for revived uses of spear-throwers, the ancient Greeks and Romans used a leather thong or loop, known as an ankule or amentum, as a spear-throwing device. Spear-thrower designs may include such as thong loops to fit the fingers, the use of flexible shafts, stone balance weights. Darts resemble large arrows or thin spears and are typically from 1.2 to 2.7 m in length and 9 to 16 mm in diameter, another important improvement to the spear-throwers design was the introduction of a small weight strapped to its midsection. Some atlatlists maintain that stone weights add mass to the shaft of the device, causing resistance to acceleration when swung and resulting in a more forceful, others claim that spear-thrower weights add only stability to a cast, resulting in greater accuracy. Based on previous work done by William S. Webb, William R, the use of the device would reduce the telltale zip of a swung atlatl to a more subtle woof sound that did not travel as far and was less likely to alert prey. The woomera design is different from most other spear-throwers, in that it has a curved, hollow shape. Several Stone Age spear-throwers are decorated with carvings of animals, the British Museum has a mammoth, many pieces of decorated bone may have belonged to Bâtons de commandement. The Aztec atlatl was often decorated with designs and feathers. Wooden darts were known at least since the Middle Paleolithic, while the spear-thrower is capable of casting a dart well over one hundred meters, it is most accurately used at distances of twenty meters or less. The spearthrower is believed to have been in use by Homo sapiens since the Upper Paleolithic, most stratified European finds come from the Magdalenian. In this period, elaborate pieces, often in the form of animals, are common, the earliest secure data concerning atlatls have come from several caves in France dating to the Upper Paleolithic, about 21,000 to 17,000 years ago. The earliest known example is a 17, 500-year-old Solutrean atlatl made of antler, found at Combe Saunière. In Europe, the spear-thrower was supplemented by the bow and arrow in the Epi-Paleolithic and this allowed for more forgiving flint knapping, dart heads designed for a particular spear thrower tend to differ in mass by only a few percent
10.
Origin of the domestic dog
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The origin of the domestic dog is not clear. The domestic dog is a member of genus Canis that forms part of the wolf-like canids, the closest living relative of the dog is the gray wolf and there is no evidence of any other canine contributing to its genetic lineage. The dog and the extant gray wolf form two clades, with modern wolves not closely related to the wolves that were first domesticated. The archaeological record shows the first undisputed dog remains buried beside humans 14,700 years ago and these dates imply that the earliest dogs arose in the time of human hunter-gatherers and not agriculturists. The dog was the first domesticated species, where the genetic divergence of dog and wolf took place remains controversial, with the most plausible proposals spanning Western Europe, Central Asia, and East Asia. The Western Eurasian dog population was partially and gradually replaced by East Asian dogs introduced by humans at least 6,400 years ago. Six million years ago at the close of the Miocene era, the climate was gradually cooling and this would lead to the glaciations of the Pliocene. In many areas the forests and savannahs were being replaced with steppe or grasslands, on opposite sides of the planet, two very different lineages would adapt to these changes and their evolution would produce two species that would become the most widely distributed of mammals. In eastern Africa, a split was occurring among the large primates, the two lineages would ultimately meet on the Eurasian continent. Further Information, Canid evolution Dog evolution is the descent with modification that led to the domestic dog. This process encompasses small-scale evolution and large-scale evolution, the domestic dog is the most widely abundant large carnivore. When and where dogs were first domesticated has vexed geneticists for the past 20 years, the range of natural variation among these characters that may have existed in ancient wolf populations, and the time it took for these traits to appear in dogs, are unknown. However, recent studies based on genetics propose four generalizations about dogs, over the past million years, numerous wolf-like forms existed but their turnover has been high, and modern wolves are not the lineal ancestors of dogs. This indicates that an extant wolf population that is the ancestor to dogs has not been found and is presumed extinct, the dog is not a separate species to the wolf. The dog was the first domesticated species and appeared more than 15,000 years before present, studies support two population bottlenecks had occurred to the dog lineage, one due to the initial domestication and one due to the formation of dog breeds. Dogs show both ancient and modern lineages, the ancient lineages appear most in Asia but least in Europe because the Victorian era development of modern dog breeds used little of the ancient lineages. All dog populations show some evidence of admixture between modern and ancient dogs. Some ancient dog populations that once occupied Europe and the New World no longer exist and this implies that some ancient dog populations were entirely replaced and others admixed over a long period of time
11.
Microlith
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A microlith is a small stone tool usually made of flint or chert and typically a centimetre or so in length and half a centimetre wide. They were made by people from 35,000 years ago to about 3,000 years ago, in Europe, north Africa, across Asia and in Australia, and used in spear points and arrowheads. Microliths are produced either a small blade or a larger blade-like piece of flint by abrupt or truncated retouching. The microliths themselves are sufficiently worked so as to be distinguishable from workshop waste or accidents, two families of microliths are usually defined, laminar and geometric. An assemblage of microliths can be used to date an archeological site, laminar microliths are associated with the end of the Upper Paleolithic and the beginning of the Epipaleolithic era, geometric microliths are characteristic of the Mesolithic and the Neolithic. Geometric microliths may be triangular, trapezoid or lunate, microlith production generally declined following the introduction of agriculture but continued later in cultures with a deeply rooted hunting tradition. Regardless of type, microliths were used to form the points of hunting weapons, such as spears and arrows, and other artifacts and are found throughout Africa, Asia and Europe. They were utilised with wood, bone, resin and fiber to form a tool or weapon. An average of six and eighteen microliths may often have been used in one spear or harpoon. Laminar microliths date from at least the Gravettian culture or possibly the start of the Upper Paleolithic era, noilles Burins and Microgravettes indicate that the production of microliths had already started in the Gravettian culture. This style of flint working flourished during the Magdalenian period and persisted in numerous Epipaleolithic traditions all around the Mediterranean basin. These microliths are slightly larger than the geometric microliths that followed and were made from the flakes of flint obtained ad hoc from a nucleus or from a depleted nucleus of flint. They were produced either by percussion or by the application of a variable pressure, there are three basic types of laminar microlith. The truncated blade type can be divided into a number of depending on the position of the truncation and according to its form, for example. Raclette scrapers are notable for their form, being blades or flakes whose edges have been sharply retouched until they are semicircular or even shapeless. Raclettes are indefinite cultural indicators, as they appear from the Upper Paleolithic through to the Neolithic, backed edge blades have one of the edges, generally a side one, rounded or chamfered by abrupt retouching. There are fewer types of blades, and may be divided into those where the entire edge is rounded. They are fundamental in the processes, and from them
12.
Bow and arrow
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The bow and arrow is a projectile weapon system that predates recorded history and is common to most cultures. Archery is the art, practice, or skill of applying it, a bow is a flexible arc that shoots aerodynamic projectiles called arrows. A string joins the two ends of the bow and when the string is drawn back, the ends of the bow are flexed, when the string is released, the potential energy of the flexed stick is transformed into the kinetic energy of the arrow. Archery is the art or sport of shooting arrows from bows, today, bows and arrows are used primarily for hunting and for the sport of archery. Someone who makes bows is known as a bowyer, and one who makes arrows is a fletcher —or in the case of the manufacture of arrow heads. The bow and arrow appears around the transition from the Upper Paleolithic to the Mesolithic, at the site of Nataruk in Turkana County, Kenya, obsidian bladelets found embedded in a skull and within the thoracic cavity of another skeleton, suggest the use of stone-tipped arrows as weapons. After the end of the last glacial period, use of the bow seems to have spread to every inhabited continent, including the New World, the oldest extant bows in one piece are the elm Holmegaard bows from Denmark which were dated to 9,000 BCE. High-performance wooden bows are made following the Holmegaard design. Microliths discovered on the south coast of Africa suggest that arrows may be at least 71,000 years old, the bow was an important weapon for both hunting and warfare from prehistoric times until the widespread use of gunpowder in the 16th century. Organised warfare with bows ended in the mid 17th century in Europe, the British upper class led a revival of archery from the late 18th century. Sir Ashton Lever, an antiquarian and collector, formed the Toxophilite Society in London in 1781, under the patronage of George, the basic elements of a bow are a pair of curved elastic limbs, traditionally made from wood, joined by a riser. Both ends of the limbs are connected by a known as the bow string. By pulling the string backwards the archer exerts compressive force on the section, or belly, of the limbs as well as placing the outer section, or back. While the string is held, this stores the energy released in putting the arrow to flight. The force required to hold the string stationary at full draw is used to express the power of a bow. Other things being equal, a draw weight means a more powerful bow. The various parts of the bow can be subdivided into further sections, the topmost limb is known as the upper limb, while the bottom limb is the lower limb. At the tip of each limb is a nock, which is used to attach the bowstring to the limbs, the riser is usually divided into the grip, which is held by the archer, as well as the arrow rest and the bow window
