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108-557: The Society was founded in 1953. It unites collectors, scholars and museum professionals interested in the historical aspects of horology – the study of the art, science, social history and technology of timekeepers, such as clocks and watches . The society is a registered charity under English law. The principal meetings of the Society are held periodically, primarily in London . Meetings may also be multi-day seminars, held in

216-419: A melatonin based photoperiod time measurement biological system – which measures the change in daylight within the annual cycle, giving a sense of the time in the year – and their circannual rhythms, providing an anticipation of environmental events months beforehand to increase chances of survival. There is debate over when the earliest use of lunar calendars was, and over whether some findings constituted as

324-428: A nomadic lifestyle. In addition, even a large area of land could not support many people without being actively farmed - food was difficult to come by and so groups were prevented from growing too large by the amount of food they could gather. Like contemporary hunter-gatherers, Paleolithic humans enjoyed an abundance of leisure time unparalleled in both Neolithic farming societies and modern industrial societies. At

432-690: A broad range of social and scientific areas. Horology usually refers specifically to the study of mechanical timekeeping devices, while chronometry is broader in scope, also including biological behaviours with respect to time (biochronometry), as well as the dating of geological material ( geochronometry ). Horology is commonly used specifically with reference to the mechanical instruments created to keep time: clocks , watches , clockwork , sundials , hourglasses , clepsydras , timers , time recorders , marine chronometers , and atomic clocks are all examples of instruments used to measure time. People interested in horology are called horologists . That term

540-449: A dependable alternate, so as years progress the room of error between would grow until some other indicator would give indication. The Ancient Egyptian calendars were among the first calendars made, and the civil calendar even endured for a long period afterwards, surviving past even its culture's collapse and through the early Christian era. It has been assumed to have been invented near 4231 BC by some, but accurate and exact dating

648-428: A field of chronometry, it also forms a part of cognitive psychology and its contemporary human information processing approach. Research comprises applications of the chronometric paradigms – many of which are related to classical reaction time paradigms from psychophysiology – through measuring reaction times of subjects with varied methods, and contribute to studies in cognition and action. Reaction time models and

756-649: A foreign locale to study historic horological artefacts. Besides the main body that meets in London, there also are numerous Sections, most of them regional groups of members spread throughout the United Kingdom, plus five international sections (Ireland, USA, Canada, Netherlands) and three special interest sections with interests in turret clocks , wristwatches and electrical horology. Sections may hold their own meetings and in some cases publish members' newsletters or organize horological study tours. The usual focus

864-694: A group of early humans, frequently called Homo heidelbergensis , came to Europe from Africa and eventually evolved into Homo neanderthalensis ( Neanderthals ). In the Middle Paleolithic, Neanderthals were present in the region now occupied by Poland. Both Homo erectus and Homo neanderthalensis became extinct by the start of the Upper Paleolithic. Descended from Homo sapiens , the anatomically modern Homo sapiens sapiens emerged in eastern Africa c.  300,000  BP, left Africa around 50,000 BP, and expanded throughout

972-793: A herd of animals at a waterhole so as to stun one of them. There are no indications of hafting , and some artifacts are far too large for that. Thus, a thrown hand axe would not usually have penetrated deeply enough to cause very serious injuries. Nevertheless, it could have been an effective weapon for defense against predators. Choppers and scrapers were likely used for skinning and butchering scavenged animals and sharp-ended sticks were often obtained for digging up edible roots. Presumably, early humans used wooden spears as early as 5 million years ago to hunt small animals, much as their relatives, chimpanzees , have been observed to do in Senegal , Africa. Lower Paleolithic humans constructed shelters, such as

1080-491: A lunar calendar. Most related findings and materials from the palaeolithic era are fashioned from bones and stone, with various markings from tools. These markings are thought to not have been the result of marks to represent the lunar cycles but non-notational and irregular engravings, a pattern of latter subsidiary marks that disregard the previous design is indicative of the markings being the use of motifs and ritual marking instead. However, as humans' focus turned to farming

1188-505: A need to distribute resources such as food and meat equally to avoid famine and ensure a stable food supply. Raymond C. Kelly speculates that the relative peacefulness of Middle and Upper Paleolithic societies resulted from a low population density, cooperative relationships between groups such as reciprocal exchange of commodities and collaboration on hunting expeditions, and because the invention of projectile weapons such as throwing spears provided less incentive for war, because they increased

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1296-542: A number of locations such as Oxford. The Society hosts a London Lecture Series, which from January 2020 has been held at St Mary-at-Hill , a Wren church opposite the Society's headquarters in Lovat Lane. The annual general meeting is usually held at the National Maritime Museum and involves a one-day seminar. Once a year the organization usually organizes an international study tour, travelling to

1404-540: A number of ways by modern archaeologists. The earliest explanation, by the prehistorian Abbe Breuil , interpreted the paintings as a form of magic designed to ensure a successful hunt. However, this hypothesis fails to explain the existence of animals such as saber-toothed cats and lions , which were not hunted for food, and the existence of half-human, half-animal beings in cave paintings. The anthropologist David Lewis-Williams has suggested that Paleolithic cave paintings were indications of shamanistic practices, because

1512-453: A number of ways. All dependable methods – barring the exceptions of thermoluminescence , radioluminescence and ESR (electron spin resonance) dating – are based in radioactive decay , focusing on the degradation of the radioactive parent nuclide and the corresponding daughter product's growth. By measuring the daughter isotopes in a specific sample its age can be calculated. The preserved conformity of parent and daughter nuclides provides

1620-531: A pronounced hierarchy and a somewhat formal division of labor ) and may have engaged in endemic warfare . Some argue that there was no formal leadership during the Middle and Upper Paleolithic. Like contemporary egalitarian hunter-gatherers such as the Mbuti pygmies, societies may have made decisions by communal consensus decision making rather than by appointing permanent rulers such as chiefs and monarchs . Nor

1728-406: A sequential and chronological sense, and Kairos , a concept based in a more abstract sense, representing the opportune moment for action or change to occur. Kairos (καιρός) carries little emphasis on precise chronology, instead being used as a time specifically fit for something, or also a period of time characterised by some aspect of crisis, also relating to the endtime. It can as well be seen in

1836-418: A stimulus event either immediately before or after. This testing emphasises the mental events' time-course and nature and assists in determining the structural functions in human information processing. The dating of geological materials makes up the field of geochronometry, and falls within areas of geochronology and stratigraphy , while differing itself from chronostratigraphy . The geochronometric scale

1944-453: Is a general glacial excursion, termed a "glacial". Glacials are separated by "interglacials". During a glacial, the glacier experiences minor advances and retreats. The minor excursion is a "stadial"; times between stadials are "interstadials". Each glacial advance tied up huge volumes of water in continental ice sheets 1,500–3,000  m (4,900–9,800  ft ) deep, resulting in temporary sea level drops of 100 m (330 ft) or more over

2052-412: 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 rapid decomposition, these have not survived to any great degree. About 50,000 years ago, a marked increase in the diversity of artifacts occurred. In Africa, bone artifacts and

2160-547: Is delayed. The root word is correlated with the god Chronos in Ancient Greek mythology, who embodied the image of time, originated from out of the primordial chaos. Known as the one who spins the Zodiac Wheel, further evidence of his connection to the progression of time. However, Ancient Greek makes a distinction between two types of time, chronos, the static and continuing progress of present to future, time in

2268-470: Is difficult in its era and the invention has been attributed to 3200 BC, when the first historical king of Egypt, Menes , united Upper and Lower Egypt . It was originally based on cycles and phases of the moon, however, Egyptians later realised the calendar was flawed upon noticing the star Sirius rose before sunrise every 365 days, a year as we know it now, and was remade to consist of twelve months of thirty days, with five epagomenal days. The former

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2376-583: Is more pronounced in Lower Paleolithic humans such as Homo erectus than in modern humans, who are less polygynous than other primates, which suggests that Lower Paleolithic humans had a largely polygynous lifestyle, because species that have the most pronounced sexual dimorphism tend more likely to be polygynous. Human societies from the Paleolithic to the early Neolithic farming tribes lived without states and organized governments. For most of

2484-543: Is no evidence of hominins in America, Australia, or almost anywhere in Oceania during this time period. Fates of these early colonists, and their relationships to modern humans, are still subject to debate. According to current archaeological and genetic models, there were at least two notable expansion events subsequent to peopling of Eurasia c.  2,000,000  – c.  1,500,000  BP. Around 500,000 BP

2592-656: Is on the presentation of papers on horological subjects. Some meetings involve visits to museums, restoration workshops or private collections. The Society maintains an horological library, which is functionally integrated with the library of the Worshipful Company of Clockmakers at Guildhall, London . Antiquarian Horology & the Proceedings of the Antiquarian Horological Society , generally known as Antiquarian Horology ,

2700-620: Is periodic, its units working in powers of 1000, and is based in units of duration, contrasting with the chronostratigraphic scale. The distinctions between the two scales have caused some confusion – even among academic communities. Geochronometry deals with calculating a precise date of rock sediments and other geological events, giving an idea as to what the history of various areas is, for example, volcanic and magmatic movements and occurrences can be easily recognised, as well as marine deposits, which can be indicators for marine events and even global environmental changes. This dating can be done in

2808-671: Is referred to as the Ancient Egyptians' lunar calendar, and the latter the civil calendar. Early calendars often hold an element of their respective culture's traditions and values, for example, the five day intercalary month of the Ancient Egyptian's civil calendar representing the birthdays of the gods Horus , Isis , Set , Osiris and Nephthys . Maya use of a zero date as well as the Tzolkʼin 's connection to their thirteen layers of heaven (the product of it and all

2916-844: Is smaller but located nearby. Other good horological libraries providing public access are at the Musée international d'horlogerie in Switzerland, at La Chaux-de-Fonds , and at Le Locle . In France, Besançon has the Musée du Temps (Museum of Time) in the historic Palais Grenvelle. In Serpa and Évora , in Portugal , there is the Museu do Relógio. In Germany, there is the Deutsches Uhrenmuseum in Furtwangen im Schwarzwald , in

3024-666: Is the Museum of Timekeeping. A more specialised museum of horology in the United Kingdom is the Cuckooland Museum in Cheshire , which hosts the world's largest collection of antique cuckoo clocks . One of the more comprehensive museums dedicated to horology is the Musée international d'horlogerie , in La Chaux-de-Fonds in Switzerland, which contains a public library of horology. The Musée d'Horlogerie du Locle

3132-540: Is the Society's quarterly academic journal , which is peer-reviewed and available to members, and to the public in a variety of public libraries. The Society also publishes books on horological subjects, which are available to the public. In 2012, the AHS formally affiliated with the Royal Astronomical Society . In 2014, the AHS formally affiliated with the Worshipful Company of Clockmakers . In 2016,

3240-736: Is the examination of behavioural sequences and cycles within micro-organisms. Adapting to circadian and circannual rhythms is an essential evolution for living organisms, these studies, as well as educating on the adaptations of organisms also bring to light certain factors affecting many of species' and organisms' responses, and can also be applied to further understand the overall physiology, this can be for humans as well, examples include: factors of human performance, sleep, metabolism, and disease development, which are all connected to biochronometrical cycles. Mental chronometry (also called cognitive chronometry) studies human information processing mechanisms, namely reaction time and perception . As well as

3348-411: Is the production of light from a heated insulator and semi-conductor, it is occasionally confused with incandescent light emissions of a material, a different process despite the many similarities. However, this only occurs if the material has had previous exposure to and absorption of energy from radiation. Importantly, the light emissions of thermoluminescence cannot be repeated. The entire process, from

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3456-519: Is the study of biological behaviours and patterns seen in animals with factors based in time. It can be categorised into Circadian rhythms and Circannual cycles . Examples of these behaviours can be: the relation of daily and seasonal tidal cues to the activity of marine plants and animals, the photosynthetic capacity and phototactic responsiveness in algae, or metabolic temperature compensation in bacteria. Circadian rhythms of various species can be observed through their gross motor function throughout

3564-594: Is used both by people who deal professionally with timekeeping apparatuses, as well as enthusiasts and scholars of horology. Horology and horologists have numerous organizations, both professional associations and more scholarly societies. The largest horological membership organisation globally is the NAWCC, the National Association of Watch and Clock Collectors, which is US based, but also has local chapters elsewhere. Records of timekeeping are attested during

3672-506: The !Kung San who live similarly to their Paleolithic predecessors. The economy of a typical Paleolithic society was a hunter-gatherer economy. Humans hunted wild animals for meat and gathered food, firewood, and materials for their tools, clothes, or shelters. The population density was very low, around only 0.4 inhabitants per square kilometre (1/sq mi). This was most likely due to low body fat, infanticide , high levels of physical activity among women, late weaning of infants, and

3780-489: The Altai Mountains and Indonesia, were radiocarbon dated to c.  30,000  – c.  40,000  BP and c.  17,000  BP respectively. For the duration of the Paleolithic, human populations remained low, especially outside the equatorial region. The entire population of Europe between 16,000 and 11,000 BP likely averaged some 30,000 individuals, and between 40,000 and 16,000 BP, it

3888-722: The Arctic Circle . By the end of the Upper Paleolithic Age humans had crossed Beringia and expanded throughout the Americas continents. The term " Palaeolithic " was coined by archaeologist John Lubbock in 1865. It derives from Greek: παλαιός , palaios , "old"; and λίθος , lithos , "stone", meaning "old age of the stone" or "Old Stone Age ". The Paleolithic overlaps with the Pleistocene epoch of geologic time. Both ended 12,000 years ago although

3996-909: The Black Forest , which contains a public library of horology. The two leading specialised horological museums in North America are the National Watch and Clock Museum in Columbia, Pennsylvania , and the American Clock and Watch Museum in Bristol, Connecticut . Another museum dedicated to clocks is the Willard House and Clock Museum in Grafton, Massachusetts . One of the most comprehensive horological libraries open to

4104-582: The Hadza people and the Aboriginal Australians suggest that the sexual division of labor in the Paleolithic was relatively flexible. Men may have participated in gathering plants, firewood and insects, and women may have procured small game animals for consumption and assisted men in driving herds of large game animals (such as woolly mammoths and deer) off cliffs. Additionally, recent research by anthropologist and archaeologist Steven Kuhn from

4212-510: The Isthmus of Panama , bringing a nearly complete end to South America's distinctive marsupial fauna. The formation of the isthmus had major consequences on global temperatures, because warm equatorial ocean currents were cut off, and the cold Arctic and Antarctic waters lowered temperatures in the now-isolated Atlantic Ocean. Most of Central America formed during the Pliocene to connect

4320-646: The Mousterian and the Aterian industries. Lower Paleolithic humans used a variety of stone tools, including hand axes and choppers. Although they appear to have used hand axes often, there is disagreement about their use. Interpretations range from cutting and chopping tools, to digging implements, to flaking cores, to the use in traps, and as a purely ritual significance, perhaps in courting behavior . William H. Calvin has suggested that some hand axes could have served as "killer frisbees " meant to be thrown at

4428-510: The Old Stone Age (from Ancient Greek παλαιός ( palaiós )  'old' and λίθος ( líthos )  '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 , c.  3.3 million years ago, to

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4536-533: The Oldowan , began around 2.6 million years ago. It produced tools such as choppers , burins , and stitching awls . It was completely replaced around 250,000 years ago by the more complex Acheulean industry, which was first conceived by Homo ergaster around 1.8–1.65 million years ago. The Acheulean implements completely vanish from the archaeological record around 100,000 years ago and were replaced by more complex Middle Paleolithic tool kits such as

4644-616: The Paleolithic , in the form of inscriptions made to mark the passing of lunar cycles and measure years. Written calendars were then invented, followed by mechanical devices. The highest levels of precision are presently achieved by atomic clocks , which are used to track the international standard second. Chronometry is derived from two root words, chronos and metron (χρόνος and μέτρον in Ancient Greek respectively), with rough meanings of "time" and "measure". The combination of

4752-513: The Pleistocene epoch, our ancestors relied on simple food processing techniques such as roasting . The Upper Palaeolithic saw the emergence of boiling, an advance in food processing technology which rendered plant foods more digestible, decreased their toxicity, and maximised their nutritional value. Thermally altered rock (heated stones) are easily identifiable in the archaeological record. Stone-boiling and pit-baking were common techniques which involved heating large pebbles then transferring

4860-721: The Ruwenzori Range in east and central Africa were larger. Glaciers existed in the mountains of Ethiopia and to the west in the Atlas Mountains . In the northern hemisphere, many glaciers fused into one. The Cordilleran Ice Sheet covered the North American northwest; the Laurentide covered the east. The Fenno-Scandian ice sheet covered northern Europe, including Great Britain; the Alpine ice sheet covered

4968-475: The AHS formally affiliated with the Wales and Marches Horological Society Its main sister organizations in other countries pursuing similar goals are: Horology Chronometry or horology ( lit.   ' the study of time ' ) is the science studying the measurement of time and timekeeping . Chronometry enables the establishment of standard measurements of time, which have applications in

5076-726: The Alps. Scattered domes stretched across Siberia and the Arctic shelf. The northern seas were frozen. During the late Upper Paleolithic (Latest Pleistocene) c.  18,000  BP, the Beringia land bridge between Asia and North America was blocked by ice, which may have prevented early Paleo-Indians such as the Clovis culture from directly crossing Beringia to reach the Americas. According to Mark Lynas (through collected data),

5184-865: The London area include the Clockmakers' Museum , which re-opened at the Science Museum in October 2015, the horological collections at the British Museum , the Science Museum (London) , and the Wallace Collection . The Guildhall Library in London contains an extensive public collection on horology. In Upton, also in the United Kingdom, at the headquarters of the British Horological Institute , there

5292-571: The Lower Paleolithic ( c.  1.9  million years ago) or at the latest in the early Middle Paleolithic ( c.  250,000 years ago). Some scientists have hypothesized that hominins began cooking food to defrost frozen meat, which would help ensure their survival in cold regions. Archaeologists cite morphological shifts in cranial anatomy as evidence for emergence of cooking and food processing technologies. These morphological changes include decreases in molar and jaw size, thinner tooth enamel , and decrease in gut volume. During much of

5400-837: The Lower Paleolithic, human societies were possibly more hierarchical than their Middle and Upper Paleolithic descendants, and probably were not grouped into bands , though during the end of the Lower Paleolithic, the latest populations of the hominin Homo erectus may have begun living in small-scale (possibly egalitarian) bands similar to both Middle and Upper Paleolithic societies and modern hunter-gatherers. Middle Paleolithic societies, unlike Lower Paleolithic and early Neolithic ones, consisted of bands that ranged from 20–30 or 25–100 members and were usually nomadic. These bands were formed by several families. Bands sometimes joined together into larger "macrobands" for activities such as acquiring mates and celebrations or where resources were abundant. By

5508-563: The Mediterranean Sea, such as Coa de sa Multa ( c.  300,000  BP), has also indicated that both Middle and Upper Paleolithic humans used rafts to travel over large bodies of water (i.e. the Mediterranean Sea) for the purpose of colonizing other bodies of land. By around 200,000 BP, Middle Paleolithic stone tool manufacturing spawned a tool-making technique known as the prepared-core technique , which

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5616-406: The Middle Paleolithic because trade between bands would have helped ensure their survival by allowing them to exchange resources and commodities such as raw materials during times of relative scarcity (i.e. famine, drought). Like in modern hunter-gatherer societies, individuals in Paleolithic societies may have been subordinate to the band as a whole. Both Neanderthals and modern humans took care of

5724-601: The Neanderthals hunted large game animals mostly by ambushing them and attacking them with handheld weapons such as thrusting spears rather than attacking them from a distance with projectiles. During the Upper Paleolithic , further inventions were made, such as the net ( c.  22,000 or c.  29,000  BP) bolas , the spear thrower ( c.  30,000  BP), the bow and arrow ( c.  25,000 or c.  30,000  BP) and

5832-474: The Neolithic. Upper Paleolithic cultures were probably able to time the migration of game animals such as wild horses and deer. This ability allowed humans to become efficient hunters and to exploit a wide variety of game animals. Recent research indicates that the Neanderthals timed their hunts and the migrations of game animals long before the beginning of the Upper Paleolithic. The social organization of

5940-693: The Paleolithic Age went through 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

6048-531: The Pleistocene started 2.6 million years ago, 700,000 years after the Paleolithic's start. 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 (160  mi ) from their present locations to positions only 70 km (43 mi) from their current location. South America became linked to North America through

6156-533: The Pleistocene's overall climate could be characterized as a continuous El Niño with trade winds in the south Pacific weakening or heading east, warm air rising near Peru , warm water spreading from the west Pacific and the Indian Ocean to the east Pacific, and other El Niño markers. The Paleolithic is often held to finish at the end of the ice age (the end of the Pleistocene epoch), and Earth's climate became warmer. This may have caused or contributed to

6264-492: The University of Arizona is argued to support that this division of labor did not exist prior to the Upper Paleolithic and was invented relatively recently in human pre-history. Sexual division of labor may have been developed to allow humans to acquire food and other resources more efficiently. Possibly there was approximate parity between men and women during the Middle and Upper Paleolithic, and that period may have been

6372-410: The adoption of agriculture because women in farming societies typically have more pregnancies and are expected to do more demanding work than women in hunter-gatherer societies. Like most modern hunter-gatherer societies, Paleolithic and Mesolithic groups probably followed a largely ambilineal approach. At the same time, depending on the society, the residence could be virilocal, uxorilocal, and sometimes

6480-500: The basis for the radioactive dating of geochronometry, applying the Rutherford Soddy Law of Radioactivity, specifically using the concept of radioactive transformation in the growth of the daughter nuclide. Thermoluminescence is an extremely useful concept to apply, being used in a diverse amount of areas in science, dating using thermoluminescence is a cheap and convenient method for geochronometry. Thermoluminescence

6588-479: The beginning of the period. Climates during the Pliocene became cooler and drier, and seasonal, similar to modern climates. Ice sheets grew on Antarctica . The formation of an Arctic ice cap around 3 million years ago is signaled by an abrupt shift in oxygen isotope ratios and ice-rafted cobbles in the North Atlantic and North Pacific Ocean beds. Mid-latitude glaciation probably began before

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6696-564: The continents of North and South America, allowing fauna from these continents to leave their native habitats and colonize new areas. Africa's collision with Asia created the Mediterranean, cutting off the remnants of the Tethys Ocean . During the Pleistocene , the continents were essentially at their modern positions; the tectonic plates on which they sit have probably moved at most 100 km (62 mi) from each other since

6804-422: The course of a day. These patterns are more apparent with the day further categorised into activity and rest times. Investigation into a species is conducted through comparisons of free-running and entrained rhythms, where the former is attained from within the species' natural environment and the latter from a subject that has been taught certain behaviours. Circannual rhythms are alike but pertain to patterns within

6912-692: The damage done to the attacker and decreased the relative amount of territory attackers could gain. However, other sources claim that most Paleolithic groups may have been larger, more complex, sedentary and warlike than most contemporary hunter-gatherer societies, due to occupying more resource-abundant areas than most modern hunter-gatherers who have been pushed into more marginal habitats by agricultural societies. Anthropologists have typically assumed that in Paleolithic societies, women were responsible for gathering wild plants and firewood, and men were responsible for hunting and scavenging dead animals. However, analogies to existent hunter-gatherer societies such as

7020-555: The earliest Paleolithic ( Lower Paleolithic ) societies remains largely unknown to scientists, though Lower Paleolithic hominins such as Homo habilis and Homo erectus are likely to have had more complex social structures than chimpanzee societies. Late Oldowan/Early Acheulean humans such as Homo ergaster / Homo erectus may have been the first people to invent central campsites or home bases and incorporate them into their foraging and hunting strategies like contemporary hunter-gatherers, possibly as early as 1.7 million years ago; however,

7128-543: The earliest solid evidence for the existence of home bases or central campsites (hearths and shelters) among humans only dates back to 500,000 years ago. Similarly, scientists disagree whether Lower Paleolithic humans were largely monogamous or polygynous . In particular, the Provisional model suggests that bipedalism arose in pre-Paleolithic australopithecine societies as an adaptation to monogamous lifestyles; however, other researchers note that sexual dimorphism

7236-537: The elderly members of their societies during the Middle and Upper Paleolithic. Some sources claim that most Middle and Upper Paleolithic societies were possibly fundamentally egalitarian and may have rarely or never engaged in organized violence between groups (i.e. war). Some Upper Paleolithic societies in resource-rich environments (such as societies in Sungir , in what is now Russia) may have had more complex and hierarchical organization (such as tribes with

7344-519: The end of the Pleistocene , c.  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

7452-480: The end of the Paleolithic era ( c.  10,000  BP), people began to settle down into permanent locations, and began to rely on agriculture for sustenance in many locations. Much evidence exists that humans took part in long-distance trade between bands for rare commodities (such as ochre , which was often used for religious purposes such as ritual ) and raw materials, as early as 120,000 years ago in Middle Paleolithic. Inter-band trade may have appeared during

7560-676: The end of the Paleolithic, specifically the Middle or Upper Paleolithic, people began to produce works of art such as cave paintings , rock art and jewellery and began to engage in religious behavior such as burials and rituals. At the beginning of the Paleolithic, hominins were found primarily in eastern Africa, east of the Great Rift Valley . Most known hominin fossils dating earlier than one million years before present are found in this area, particularly in Kenya , Tanzania , and Ethiopia . By c.  2,000,000  – c.  1,500,000  BP, groups of hominins began leaving Africa, settling southern Europe and Asia. The South Caucasus

7668-625: The end of the Pleistocene caused the mammoths' habitat to shrink, resulting in a drop in population. The small populations were then hunted out by Paleolithic humans. The global warming that occurred during the end of the Pleistocene and the beginning of the Holocene may have made it easier for humans to reach mammoth habitats that were previously frozen and inaccessible. Small populations of woolly mammoths survived on isolated Arctic islands, Saint Paul Island and Wrangel Island , until c.  3700  BP and c.  1700  BP respectively. The Wrangel Island population became extinct around

7776-430: 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 . The Pleistocene climate was characterized by repeated glacial cycles during which continental glaciers pushed to the 40th parallel in some places. Four major glacial events have been identified, as well as many minor intervening events. A major event

7884-632: The entire surface of the Earth. During interglacial times, drowned coastlines were common, mitigated by isostatic or other emergent motion of some regions. The effects of glaciation were global. Antarctica was ice-bound throughout the Pleistocene and the preceding Pliocene. The Andes were covered in the south by the Patagonian ice cap. There were glaciers in New Zealand and Tasmania . The decaying glaciers of Mount Kenya , Mount Kilimanjaro , and

7992-403: The extinction of the Pleistocene megafauna , although it is also possible that the late Pleistocene extinctions were (at least in part) caused by other factors such as disease and overhunting by humans. New research suggests that the extinction of the woolly mammoth may have been caused by the combined effect of climatic change and human hunting. Scientists suggest that climate change during

8100-400: The figurines as representations of goddesses , pornographic imagery, apotropaic amulets used for sympathetic magic, and even as self-portraits of women themselves. R. Dale Guthrie has studied not only the most artistic and publicized paintings, but also a variety of lower-quality art and figurines, and he identifies a wide range of skill and ages among the artists. He also points out that

8208-474: 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 . Archaeologists classify artifacts of the last 50,000 years into many different categories, such as projectile points , engraving tools, sharp knife blades, and drilling and piercing tools. Humankind gradually evolved from early members of

8316-513: The first users of stone tools. Excavations in Gona, Ethiopia , have produced thousands of artifacts, and through radioisotopic dating and magnetostratigraphy the sites can be firmly dated to 2.6 million years ago. Evidence shows these early hominins intentionally selected raw stone with good flaking qualities and chose appropriately sized stones for their needs to produce sharp-edged tools for cutting. The earliest Paleolithic stone tool industry,

8424-421: The genus Homo —such as Homo habilis , who used simple stone tools—into anatomically modern humans as well as behaviourally modern humans by the Upper Paleolithic . During the end of the Paleolithic Age, specifically the Middle or Upper Paleolithic Age, humans began to produce the earliest works of art and to engage in religious or spiritual behavior such as burial and ritual . Conditions during

8532-546: The hot stones into a perishable container to heat the water. This technology is typified in the Middle Palaeolithic example of the Abri Pataud hearths. The Lower Paleolithic Homo erectus possibly invented rafts ( c.  840,000  – c.  800,000  BP) to travel over large bodies of water, which may have allowed a group of Homo erectus to reach the island of Flores and evolve into

8640-603: The human digits, twenty, making the 260-day year of the year) and the length of time between conception and birth in pregnancy. There are many horology museums and several specialized libraries devoted to the subject. One example is the Royal Greenwich Observatory , which is also the source of the Prime Meridian and the home of the first marine timekeepers accurate enough to determine longitude (made by John Harrison ). Other horological museums in

8748-412: The importance and reliance on understanding the rhythms and cycle of the seasons grew, and the unreliability of lunar phases became problematic. An early human accustomed to the phases of the moon would use them as a rule of thumb, and the potential for weather to interfere with reading the cycle further degraded the reliability. The length of a moon is on average less than our current month, not acting as

8856-414: The inherent relation between chronos and kairos, their function the Ancient Greek's portrayal and concept of time, understanding one means understanding the other in part. The implication of chronos, an indifferent disposition and eternal essence lies at the core of the science of chronometry, bias is avoided, and definite measurement is favoured. Biochronometry (also chronobiology or biological chronometry)

8964-634: The invention of these devices brought fish into the human diets, which provided a hedge against starvation and a more abundant food supply. Thanks to their technology and their advanced social structures, Paleolithic groups such as the Neanderthals—who had a Middle Paleolithic level of technology—appear to have hunted large game just as well as Upper Paleolithic modern humans, and the Neanderthals in particular may have likewise hunted with projectile weapons. Nonetheless, Neanderthal use of projectile weapons in hunting occurred very rarely (or perhaps never) and

9072-434: The lack of control of fire: studies of cave settlements in Europe indicate no regular use of fire prior to c.  400,000  – c.  300,000  BP. East Asian fossils from this period are typically placed in the genus Homo erectus . Very little fossil evidence is available at known Lower Paleolithic sites in Europe, but it is believed that hominins who inhabited these sites were likewise Homo erectus . There

9180-581: The late Middle Paleolithic around 100,000 BP or perhaps even earlier. Archaeological evidence from the Dordogne region of France demonstrates that members of the European early Upper Paleolithic culture known as the Aurignacian used calendars ( c.  30,000  BP). This was a lunar calendar that was used to document the phases of the moon. Genuine solar calendars did not appear until

9288-491: The light of an advantage, profit, or fruit of a thing, but has also been represented in apocalyptic feeling, and likewise shown as variable between misfortune and success, being likened to a body part vulnerable due to a gap in armor for Homer , benefit or calamity depending on the perspective. It is also referenced in Christian theology , being used as implication of God's action and judgement in circumstances. Because of

9396-486: The material's exposure to radiation would have to be repeated to generate another thermoluminescence emission. The age of a material can be determined by measuring the amount of light given off during the heating process, by means of a phototube, as the emission is proportional to the dose of radiation the material absorbed. Time metrology or time and frequency metrology is the application of metrology for timekeeping, including frequency stability . Its main tasks are

9504-415: The most gender-equal time in human history. Archaeological evidence from art and funerary rituals indicates that a number of individual women enjoyed seemingly high status in their communities, and it is likely that both sexes participated in decision making. The earliest known Paleolithic shaman ( c.  30,000  BP) was female. Jared Diamond suggests that the status of women declined with

9612-620: The oldest example of ceramic art, the Venus of Dolní Věstonice ( c.  29,000  – c.  25,000  BP). Kilu Cave at Buku island , Solomon Islands , demonstrates navigation of some 60 km of open ocean at 30,000 BCcal. Early dogs were domesticated sometime between 30,000 and 14,000 BP, presumably to aid in hunting. However, the earliest instances of successful domestication of dogs may be much more ancient than this. Evidence from canine DNA collected by Robert K. Wayne suggests that dogs may have been first domesticated in

9720-471: The paintings of half-human, half-animal figures and the remoteness of the caves are reminiscent of modern hunter-gatherer shamanistic practices. Symbol-like images are more common in Paleolithic cave paintings than are depictions of animals or humans, and unique symbolic patterns might have been trademarks that represent different Upper Paleolithic ethnic groups. Venus figurines have evoked similar controversy. Archaeologists and anthropologists have described

9828-695: The pigment ochre from late Lower Paleolithic Acheulean archaeological sites suggests that Acheulean societies, like later Upper Paleolithic societies, collected and used ochre to create rock art. Nevertheless, it is also possible that the ochre traces found at Lower Paleolithic sites is naturally occurring. Upper Paleolithic humans produced works of art such as cave paintings, Venus figurines, animal carvings, and rock paintings. Upper Paleolithic art can be divided into two broad categories: figurative art such as cave paintings that clearly depicts animals (or more rarely humans); and nonfigurative, which consists of shapes and symbols. Cave paintings have been interpreted in

9936-486: The planet. Multiple hominid groups coexisted for some time in certain locations. Homo neanderthalensis were still found in parts of Eurasia c.  40,000  BP years, and engaged in an unknown degree of interbreeding with Homo sapiens sapiens . DNA studies also suggest an unknown degree of interbreeding between Homo sapiens sapiens and Homo sapiens denisova . Hominin fossils not belonging either to Homo neanderthalensis or to Homo sapiens species, found in

10044-647: The possible wood hut at Terra Amata . Fire was used by the Lower Paleolithic hominins Homo erectus and Homo ergaster as early as 300,000 to 1.5 million years ago and possibly even earlier by the early Lower Paleolithic (Oldowan) hominin Homo habilis or by robust Australopithecines such as Paranthropus . However, the use of fire only became common in the societies of the following Middle Stone Age and Middle Paleolithic . Use of fire reduced mortality rates and provided protection against predators. Early hominins may have begun to cook their food as early as

10152-474: The process of expressing the temporostructural organisation of human processing mechanisms have an innate computational essence to them. It has been argued that because of this, conceptual frameworks of cognitive psychology cannot be integrated in their typical fashions. One common method is the use of event-related potentials (ERPs) in stimulus-response experiments. These are fluctuations of generated transient voltages in neural tissues that occur in response to

10260-433: The public is the National Watch and Clock Library in Columbia, Pennsylvania . Notable scholarly horological organizations include: Paleolithic Fertile Crescent : Europe : Africa : Siberia : The Paleolithic or Palaeolithic ( c.  3.3 million  – c.  11,700 BC ) ( / ˌ p eɪ l i oʊ ˈ l ɪ θ ɪ k , ˌ p æ l i -/ PAY -lee-oh- LITH -ik, PAL -ee- ), also called

10368-477: The realization of the second as the SI unit of measurement for time and the establishment of time standards and frequency standards as well as their dissemination . Early humans would have used their basic senses to perceive the time of day, and relied on their biological sense of time to discern the seasons in order to act accordingly. Their physiological and behavioural seasonal cycles mainly being influenced by

10476-408: The same time the island was settled by prehistoric humans. There is no evidence of prehistoric human presence on Saint Paul island (though early human settlements dating as far back as 6500 BP were found on the nearby Aleutian Islands ). Nearly all of our knowledge of Paleolithic people and way of life comes from archaeology and ethnographic comparisons to modern hunter-gatherer cultures such as

10584-417: The scale of a year, patterns like migration, moulting, reproduction, and body weight are common examples, research and investigation are achieved with similar methods to circadian patterns. Circadian and circannual rhythms can be seen in all organisms, in both single and multi-celled organisms. A sub-branch of biochronometry is microbiochronometry (also chronomicrobiology or microbiological chronometry), and

10692-423: The small hominin Homo floresiensis . However, this hypothesis is disputed within the anthropological community. The possible use of rafts during the Lower Paleolithic may indicate that Lower Paleolithic hominins such as Homo erectus were more advanced than previously believed, and may have even spoken an early form of modern language. Supplementary evidence from Neanderthal and modern human sites located around

10800-481: The spouses could live with neither the husband's relatives nor the wife's relatives at all. Taken together, most likely, the lifestyle of hunter-gatherers can be characterized as multilocal. Early examples of artistic expression, such as the Venus of Tan-Tan and the patterns found on elephant bones from Bilzingsleben in Thuringia , may have been produced by Acheulean tool users such as Homo erectus prior to

10908-754: The start of the Middle Paleolithic period. However, the earliest undisputed evidence of art during the Paleolithic comes from Middle Paleolithic / Middle Stone Age sites such as Blombos Cave –South Africa–in the form of bracelets , beads , rock art , and ochre used as body paint and perhaps in ritual. Undisputed evidence of art only becomes common in the Upper Paleolithic. Lower Paleolithic Acheulean tool users, according to Robert G. Bednarik, began to engage in symbolic behavior such as art around 850,000 BP. They decorated themselves with beads and collected exotic stones for aesthetic, rather than utilitarian qualities. According to him, traces of

11016-422: The tools themselves that allowed access to a wider variety and amount of food sources. For example, microliths or small stone tools or points were invented around 70,000–65,000 BP and were essential to the invention of bows and atlatls (spear throwers) in the following Upper Paleolithic. Harpoons were invented and used for the first time during the late Middle Paleolithic ( c.  90,000  BP);

11124-475: The two is taken to mean time measuring. In the Ancient Greek lexicon, meanings and translations differ depending on the source. Chronos, used in relation to time when in definite periods, and linked to dates in time, chronological accuracy, and sometimes in rare cases, refers to a delay. The length of the time it refers ranges from seconds to seasons of the year to lifetimes, it can also concern periods of time wherein some specific event takes place, or persists, or

11232-468: Was even lower at 4,000–6,000 individuals. However, remains of thousands of butchered animals and tools made by Palaeolithic humans were found in Lapa do Picareiro , a cave in Portugal , dating back between 41,000 and 38,000 years ago. Some researchers have noted that science, limited in that age to some early ideas about astronomy (or cosmology ), had limited impact on Paleolithic technology. Making fire

11340-429: Was more elaborate than previous Acheulean techniques. This technique increased efficiency by allowing the creation of more controlled and consistent flakes . It allowed Middle Paleolithic humans to create stone-tipped spears , which were the earliest composite tools, by hafting sharp pointy stone flakes onto wooden shafts. In addition to improving tool-making methods, the Middle Paleolithic also saw an improvement of

11448-402: Was occupied by c.  1,700,000  BP, and northern China was reached by c.  1,660,000  BP. By the end of the Lower Paleolithic, members of the hominin family were living in what is now China, western Indonesia, and, in Europe, around the Mediterranean and as far north as England, France, southern Germany, and Bulgaria. Their further northward expansion may have been limited by

11556-459: Was there a formal division of labor during the Paleolithic. Each member of the group was skilled at all tasks essential to survival, regardless of individual abilities. Theories to explain the apparent egalitarianism have arisen, notably the Marxist concept of primitive communism . Christopher Boehm (1999) has hypothesized that egalitarianism may have evolved in Paleolithic societies because of

11664-433: Was widespread knowledge, and it was possible without an understanding of chemical processes, These types of practical skills are sometimes called crafts. Religion, superstitution or appeals to the supernatural may have played a part in the cultural explanations of phenomena like combustion . Paleolithic humans made tools of stone, bone (primarily of deer), and wood. The early paleolithic hominins, Australopithecus , were

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