![Bifaz_cordiforme](https://upload.wikimedia.org/wikipedia/commons/1/16/Bifaz_cordiforme.jpg)
Acheulean (; also Acheulian and Mode II), from the French ''acheuléen'' after the type site of
Saint-Acheul
Saint-Acheul is a commune in the Somme department in Hauts-de-France in northern France. It is not to be confused with Saint-Acheul, a suburb of Amiens after which the Acheulean archaeological culture of the Lower Paleolithic is named.
Geog ...
, is an
archaeological industry :''Not to be confused with industrial archaeology, the archaeology of (modern) industrial sites.''
In the archaeology of the Stone Age, an industry or technocomplex is a typological classification of stone tools.
An industry consists of a nu ...
of
stone tool
A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. Although stone tool-dependent societies and cultures still exist today, most stone tools are associated with prehistoric (particularly Stone Ag ...
manufacture characterized by the distinctive oval and pear-shaped "
hand axe
A hand axe (or handaxe or Acheulean hand axe) is a prehistoric stone tool with two faces that is the longest-used tool in human history, yet there is no academic consensus on what they were used for. It is made from stone, usually flint or che ...
s" associated with ''
Homo erectus
''Homo erectus'' (; meaning "upright man") is an extinct species of archaic human from the Pleistocene, with its earliest occurrence about 2 million years ago. Several human species, such as '' H. heidelbergensis'' and '' H. antecessor' ...
'' and derived species such as ''
Homo heidelbergensis
''Homo heidelbergensis'' (also ''H. sapiens heidelbergensis''), sometimes called Heidelbergs, is an extinct species or subspecies of archaic human which existed during the Middle Pleistocene. It was subsumed as a subspecies of ''H. erectus'' in ...
''.
Acheulean tools were produced during the
Lower Palaeolithic
The Lower Paleolithic (or Lower Palaeolithic) is the earliest subdivision of the Paleolithic or Old Stone Age. It spans the time from around 3 million years ago when the first evidence for stone tool production and use by hominins appears in ...
era across Africa and much of West Asia, South Asia, East Asia and Europe, and are typically found with ''
Homo erectus
''Homo erectus'' (; meaning "upright man") is an extinct species of archaic human from the Pleistocene, with its earliest occurrence about 2 million years ago. Several human species, such as '' H. heidelbergensis'' and '' H. antecessor' ...
'' remains. It is thought that Acheulean technologies first developed about 1.76 million years ago, derived from the more primitive
Oldowan
The Oldowan (or Mode I) was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower ...
technology associated with ''
Homo habilis
''Homo habilis'' ("handy man") is an extinct species of archaic human from the Early Pleistocene of East and South Africa about 2.31 million years ago to 1.65 million years ago (mya). Upon species description in 1964, ''H. habilis'' was highly ...
''.
The Acheulean includes at least the early part of the
Middle Paleolithic
The Middle Paleolithic (or Middle Palaeolithic) is the second subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. The term Middle Stone Age is used as an equivalent or a synonym for the Middle Paleoli ...
. Its end is not well defined, depending on whether
Sangoan
The Sangoan is the name given by archaeologists to a Palaeolithic tool manufacturing style which may have developed from the earlier Acheulian types. In addition to the Acheulian stone tools, bone and antler picks were also used. Sangoan toolkits ...
(also known as "Epi-Acheulean") is included, it may be taken to last until as late as 130,000 years ago. In Europe and Western Asia, early
Neanderthals
Neanderthals (, also ''Homo neanderthalensis'' and erroneously ''Homo sapiens neanderthalensis''), also written as Neandertals, are an Extinction, extinct species or subspecies of archaic humans who lived in Eurasia until about 40,000 years ag ...
adopted Acheulean technology, transitioning to
Mousterian
The Mousterian (or Mode III) is an archaeological industry of stone tools, associated primarily with the Neanderthals in Europe, and to the earliest anatomically modern humans in North Africa and West Asia. The Mousterian largely defines the latt ...
by about 160,000 years ago.
History of research
The
type site
In archaeology, a type site is the site used to define a particular archaeological culture or other typological unit, which is often named after it. For example, discoveries at La Tène and Hallstatt led scholars to divide the European Iron A ...
for the Acheulean is
Saint-Acheul
Saint-Acheul is a commune in the Somme department in Hauts-de-France in northern France. It is not to be confused with Saint-Acheul, a suburb of Amiens after which the Acheulean archaeological culture of the Lower Paleolithic is named.
Geog ...
, a suburb of
Amiens
Amiens (English: or ; ; pcd, Anmien, or ) is a city and commune in northern France, located north of Paris and south-west of Lille. It is the capital of the Somme department in the region of Hauts-de-France. In 2021, the population of ...
, the capital of the
Somme department in
Picardy
Picardy (; Picard and french: Picardie, , ) is a historical territory and a former administrative region of France. Since 1 January 2016, it has been part of the new region of Hauts-de-France. It is located in the northern part of France.
Hi ...
, where artifacts were found in 1859.
John Frere
John Frere (10 August 1740 – 12 July 1807) was an English antiquary and a pioneering discoverer of Old Stone Age or Lower Palaeolithic tools in association with large extinct animals at Hoxne, Suffolk in 1797.
Life
Frere was born in Royd ...
is generally credited as being the first to suggest a very ancient date for Acheulean hand-axes. In 1797, he sent two examples to the
Royal Academy
The Royal Academy of Arts (RA) is an art institution based in Burlington House on Piccadilly in London. Founded in 1768, it has a unique position as an independent, privately funded institution led by eminent artists and architects. Its pur ...
in London from
Hoxne
Hoxne ( ) is a village in the Mid Suffolk district of Suffolk, England, about five miles (8 km) east-southeast of Diss, Norfolk and south of the River Waveney. The parish is irregularly shaped, covering the villages of Hoxne, Cross Street a ...
in
Suffolk
Suffolk () is a ceremonial county of England in East Anglia. It borders Norfolk to the north, Cambridgeshire to the west and Essex to the south; the North Sea lies to the east. The county town is Ipswich; other important towns include Lowes ...
. He had found them in prehistoric lake deposits along with the bones of extinct animals and concluded that they were made by people "who had not the use of metals" and that they belonged to a "very ancient period indeed, even beyond the present world". His ideas were, however, ignored by his contemporaries, who subscribed to a pre-
Darwinian
Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that ...
view of
human evolution
Human evolution is the evolutionary process within the history of primates that led to the emergence of ''Homo sapiens'' as a distinct species of the hominid family, which includes the great apes. This process involved the gradual development of ...
.
Later,
Jacques Boucher de Crèvecœur de Perthes
Jacques Boucher de Crèvecœur de Perthes (; 10 September 1788 – 5 August 1868), sometimes referred to as Boucher de Perthes ( ), was a French archaeologist and antiquary notable for his discovery, in about 1830, of flint tools in the gravels of ...
, working between 1836 and 1846, collected further examples of hand-axes and
fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
ised animal bone from the gravel
river terrace
Fluvial terraces are elongated terraces that flank the sides of floodplains and fluvial valleys all over the world. They consist of a relatively level strip of land, called a "tread", separated from either an adjacent floodplain, other fluvial te ...
s of the
Somme near
Abbeville
Abbeville (, vls, Abbekerke, pcd, Advile) is a commune in the Somme department and in Hauts-de-France region in northern France.
It is the chef-lieu of one of the arrondissements of Somme. Located on the river Somme, it was the capital of ...
in northern France. Again, his theories attributing great antiquity to the finds were spurned by his colleagues, until one of de Perthes' main opponents, Dr
Marcel Jérôme Rigollot, began finding more tools near Saint Acheul. Following visits to both Abbeville and Saint Acheul by the geologist
Joseph Prestwich
Sir Joseph Prestwich, FRS (12 March 1812 – 23 June 1896) was a British geologist and businessman, known as an expert on the Tertiary Period and for having confirmed the findings of Boucher de Perthes of ancient flint tools in the Somme vall ...
, the age of the tools was finally accepted.
In 1872,
Louis Laurent Gabriel de Mortillet
Louis Laurent Gabriel de Mortillet (29 August 1821 – 25 September 1898), French archaeologist and anthropologist, was born at Meylan, Isère.
Biography
Mortillet was educated at the Jesuit college of Chambéry and at the Paris Conservatoire. ...
described the characteristic hand-axe tools as belonging to ''L'Epoque de St Acheul''. The industry was renamed as the Acheulean in 1925.
Dating the Acheulean
Providing calendrical dates and ordered chronological sequences in the study of early stone tool manufacture is often accomplished through one or more geological techniques, such as
radiometric dating
Radiometric dating, radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed. The method compares t ...
, often
potassium-argon dating, and
magnetostratigraphy
Magnetostratigraphy is a geophysical correlation technique used to date sedimentary and volcanic sequences. The method works by collecting oriented samples at measured intervals throughout the section. The samples are analyzed to determine their '' ...
. From the
Konso Formation of Ethiopia, Acheulean hand-axes are dated to about 1.5 million years ago using
radiometric dating
Radiometric dating, radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed. The method compares t ...
of deposits containing volcanic ashes. Acheulean tools in South Asia have also been found to be dated as far as 1.5 million years ago. However, the earliest accepted examples of the Acheulean currently known come from the
West Turkana region of
Kenya
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and were first described by a French-led archaeology team. These particular Acheulean tools were recently dated through the method of
magnetostratigraphy
Magnetostratigraphy is a geophysical correlation technique used to date sedimentary and volcanic sequences. The method works by collecting oriented samples at measured intervals throughout the section. The samples are analyzed to determine their '' ...
to about 1.76 million years ago, making them the oldest not only in Africa but the world. The earliest user of Acheulean tools may have been ''
Homo ergaster
''Homo ergaster'' is an extinct species or subspecies of archaic humans who lived in Africa in the Early Pleistocene. Whether ''H. ergaster'' constitutes a species of its own or should be subsumed into ''Homo erectus, H. erectus'' is an ongoin ...
'', who first appeared about 1.8 million years ago (not all researchers use this formal name, and instead prefer to call these users ''early
Homo erectus
''Homo erectus'' (; meaning "upright man") is an extinct species of archaic human from the Pleistocene, with its earliest occurrence about 2 million years ago. Several human species, such as '' H. heidelbergensis'' and '' H. antecessor' ...
''
). However, it is impossible to know for sure whether ''Homo ergaster'' was the only maker of early Acheulean tools, since other hominin species, such as ''
Homo habilis
''Homo habilis'' ("handy man") is an extinct species of archaic human from the Early Pleistocene of East and South Africa about 2.31 million years ago to 1.65 million years ago (mya). Upon species description in 1964, ''H. habilis'' was highly ...
'', also lived in East Africa at this time
From geological dating of sedimentary deposits, it appears that the Acheulean originated in Africa and spread to Asian, Middle Eastern, and European areas sometime between 1.5 million years ago and about 800 thousand years ago.
In individual regions, this dating can be considerably refined; in Europe for example, it was thought that Acheulean methods did not reach the continent until around 500,000 years ago. However, more recent research demonstrated that
hand-axe
A hand axe (or handaxe or Acheulean hand axe) is a prehistoric stone tool with two faces that is the longest-used tool in human history, yet there is no academic consensus on what they were used for. It is made from stone, usually flint or ch ...
s from Spain were made more than 900,000 years ago.
[
Relative dating techniques (based on a presumption that technology progresses over time) suggest that Acheulean tools followed on from earlier, cruder tool-making methods, but there is considerable chronological overlap in early prehistoric stone-working industries, with evidence in some regions that Acheulean tool-using groups were contemporary with other, less sophisticated industries such as the ]Clactonian
The Clactonian is the name given by archaeologists to an industry of European flint tool manufacture that dates to the early part of the interglacial period known as the Hoxnian, the Mindel- Riss or the Holstein stages (c. 400,000 years ago). C ...
and then later with the more sophisticated Mousterian
The Mousterian (or Mode III) is an archaeological industry of stone tools, associated primarily with the Neanderthals in Europe, and to the earliest anatomically modern humans in North Africa and West Asia. The Mousterian largely defines the latt ...
, as well. It is therefore important not to see the Acheulean as a neatly defined period or one that happened as part of a clear sequence but as one tool-making technique that flourished especially well in early prehistory. The enormous geographic spread of Acheulean techniques also makes the name unwieldy as it represents numerous regional variations on a similar theme. The term Acheulean does not represent a common culture
Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups.Tyl ...
in the modern sense, rather it is a basic method for making stone tools that was shared across much of the Old World
The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by the ...
.
The very earliest Acheulean assemblages often contain numerous Oldowan
The Oldowan (or Mode I) was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower ...
-style flakes and core forms and it is almost certain that the Acheulean developed from this older industry. These industries are known as the Developed Oldowan and are almost certainly transitional between the Oldowan
The Oldowan (or Mode I) was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower ...
and Acheulean.
Regionally subdivided end times of the Acheulean show that it persisted long after the diffusion of Middle Palaeolithic
The Middle Paleolithic (or Middle Palaeolithic) is the second subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. The term Middle Stone Age is used as an equivalent or a synonym for the Middle Paleoli ...
technologies in multiple continental regions and ended over 100,000 years apart – in Africa and the Near East: 175–166 kya, in Europe: 141–130 kya and in Asia: 57–53 kya.
Acheulean stone tools
Stages
In the four divisions of prehistoric stone-working, Acheulean artefacts are classified as Mode 2, meaning they are more advanced than the (usually earlier) Mode 1 tools of the Clactonian
The Clactonian is the name given by archaeologists to an industry of European flint tool manufacture that dates to the early part of the interglacial period known as the Hoxnian, the Mindel- Riss or the Holstein stages (c. 400,000 years ago). C ...
or Oldowan
The Oldowan (or Mode I) was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower ...
/Abbevillian
Abbevillian (formerly also ''Chellean'') is a term for the oldest lithic industry found in Europe, dated to between roughly 600,000 and 400,000 years ago.
The original artifacts were collected from road construction sites on the Somme river nea ...
industries but lacking the sophistication of the (usually later) Mode 3 Middle Palaeolithic technology, exemplified by the Mousterian
The Mousterian (or Mode III) is an archaeological industry of stone tools, associated primarily with the Neanderthals in Europe, and to the earliest anatomically modern humans in North Africa and West Asia. The Mousterian largely defines the latt ...
industry.
The Mode 1 industries created rough flake tool
In archaeology, a flake tool is a type of stone tool that was used during the Stone Age that was created by striking a flake from a prepared stone core.
People during prehistoric times often preferred these flake tools as compared to other tools ...
s by hitting a suitable stone with a hammerstone
In archaeology, a hammerstone is a hard cobble used to strike off lithic flakes from a lump of tool stone during the process of lithic reduction. The hammerstone is a rather universal stone tool which appeared early in most regions of the wo ...
. The resulting flake that broke off would have a natural sharp edge for cutting and could afterwards be sharpened further by striking another smaller flake from the edge if necessary (known as "retouch"). These early toolmakers may also have worked the stone they took the flake from (known as a core
Core or cores may refer to:
Science and technology
* Core (anatomy), everything except the appendages
* Core (manufacturing), used in casting and molding
* Core (optical fiber), the signal-carrying portion of an optical fiber
* Core, the centra ...
) to create chopper core
In archaeology a chopper core is a suggested type of stone tool created by using a lithic core as a Chopper (archaeology), chopper following the removal of lithic flake, flakes from that core. They may be a very crude form of early handaxe although ...
s although there is some debate over whether these items were tools or just discarded cores.
The Mode 2 Acheulean toolmakers also used the Mode 1 flake tool method but supplemented it by using bone, antler, or wood to shape stone tools. This type of hammer, compared to stone, yields more control over the shape of the finished tool. Unlike the earlier Mode 1 industries, it was the core that was prized over the flakes that came from it. Another advance was that the Mode 2 tools were worked symmetrically and on both sides indicating greater care in the production of the final tool.
Mode 3 technology emerged towards the end of Acheulean dominance and involved the Levallois technique
The Levallois technique () is a name given by archaeologists to a distinctive type of stone knapping developed around 250,000 to 300,000 years ago during the Middle Palaeolithic period. It is part of the Mousterian stone tool industry, and was u ...
, most famously exploited by the Mousterian
The Mousterian (or Mode III) is an archaeological industry of stone tools, associated primarily with the Neanderthals in Europe, and to the earliest anatomically modern humans in North Africa and West Asia. The Mousterian largely defines the latt ...
industry. Transitional tool forms between the two are called Mousterian of Acheulean Tradition, or MTA types. The long blades
A blade is the portion of a tool, weapon, or machine with an edge that is designed to puncture, chop, slice or scrape surfaces or materials. Blades are typically made from materials that are harder than those they are to be used on. Historic ...
of the Upper Palaeolithic
The Upper Paleolithic (or Upper Palaeolithic) is the third and last subdivision of the Paleolithic or Old Stone Age. Very broadly, it dates to between 50,000 and 12,000 years ago (the beginning of the Holocene), according to some theories coin ...
Mode 4 industries appeared long after the Acheulean was abandoned.
As the period of Acheulean tool use is so vast, efforts have been made to classify various stages of it such as John Wymer's division into Early Acheulean, Middle Acheulean, Late Middle Acheulean and Late Acheulean for material from Britain. These schemes are normally regional and their dating and interpretations vary.
In Africa, there is a distinct difference in the tools made before and after 600,000 years ago with the older group being thicker and less symmetric and the younger being more extensively trimmed.
Manufacture
The primary innovation associated with Acheulean hand-axe
A hand axe (or handaxe or Acheulean hand axe) is a prehistoric stone tool with two faces that is the longest-used tool in human history, yet there is no academic consensus on what they were used for. It is made from stone, usually flint or ch ...
s is that the stone was worked symmetrically and on both sides. For the latter reason, handaxes are, along with cleavers, bifacially worked tools that could be manufactured from the large flakes themselves or from prepared cores.
Tool types found in Acheulean assemblages include pointed, cordate, ovate, ficron
A ficron handaxe is the name given to a type of prehistoric stone tool biface with long, curved sides and a pointed, well-made tip. They are found in Lower Palaeolithic, Middle Palaeolithic and Acheulean contexts, and are some of the oldest tools ...
, and bout-coupé hand-axes (referring to the shapes of the final tool), cleavers, retouched flakes, scraper
Scrape, scraper or scraping may refer to:
Biology and medicine
* Abrasion (medical), a type of injury
* Scraper (biology), grazer-scraper, a water animal that feeds on stones and other substrates by grazing algae, microorganism and other matter ...
s, and segmental chopping tools. Materials used were determined by available local stone types; flint
Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Flint was widely used historically to make stone tools and start fir ...
is most often associated with the tools but its use is concentrated in Western Europe; in Africa sedimentary
Sedimentary rocks are types of rock (geology), rock that are formed by the accumulation or deposition of mineral or organic matter, organic particles at Earth#Surface, Earth's surface, followed by cementation (geology), cementation. Sedimentati ...
and igneous rock
Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main The three types of rocks, rock types, the others being Sedimentary rock, sedimentary and metamorphic rock, metamorphic. Igneous rock ...
such as mudstone
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Mudstone is distinguished from '' shale'' by its lack of fissility (parallel layering).Blatt, H., and R.J. Tracy, 1996, ''Petrology. ...
and basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
were most widely used, for example. Other source materials include chalcedony
Chalcedony ( , or ) is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic. ...
, quartzite
Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tect ...
, andesite
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predomi ...
, sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks.
Most sandstone is composed of quartz or feldspar (both silicates) ...
, chert
Chert () is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a prec ...
, and shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...
. Even relatively soft rock such as limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...
could be exploited. In all cases the toolmakers worked their handaxes close to the source of their raw materials, suggesting that the Acheulean was a set of skills passed between individual groups.
Some smaller tools were made from large flakes that had been struck from stone cores. These flake tools and the distinctive waste flakes produced in Acheulean tool manufacture suggest a more considered technique, one that required the toolmaker to think one or two steps ahead during work that necessitated a clear sequence of steps to create perhaps several tools in one sitting.
A hard hammerstone would first be used to rough out the shape of the tool from the stone by removing large flakes. These large flakes might be re-used to create tools. The tool maker would work around the circumference of the remaining stone core, removing smaller flakes alternately from each face. The scar created by the removal of the preceding flake would provide a striking platform for the removal of the next. Misjudged blows or flaws in the material used could cause problems, but a skilled toolmaker could overcome them.
Once the roughout shape was created, a further phase of flaking was undertaken to make the tool thinner. The thinning flakes were removed using a softer hammer, such as bone or antler. The softer hammer required more careful preparation of the striking platform and this would be abraded using a coarse stone to ensure the hammer did not slide off when struck.
Final shaping was then applied to the usable cutting edge of the tool, again using fine removal of flakes. Some Acheulean tools were sharpened instead by the removal of a tranchet flake In archaeology, a tranchet flake is a characteristic type of flake removed by a flintknapper during lithic reduction
In archaeology, in particular of the Stone Age, lithic reduction is the process of fashioning stones or rocks from their natural ...
. This was struck from the lateral edge of the hand-axe close to the intended cutting area, resulting in the removal of a flake running along (parallel to) the blade of the axe to create a neat and very sharp working edge. This distinctive tranchet flake can be identified amongst flint-knapping
Knapping is the shaping of flint, chert, obsidian, or other conchoidal fracturing stone through the process of lithic reduction to manufacture stone tools, strikers for flintlock firearms, or to produce flat-faced stones for building or facing w ...
debris at Acheulean sites.
Use
Loren Eiseley
Loren Eiseley (September 3, 1907 – July 9, 1977) was an American anthropologist, educator, philosopher, and natural science writer, who taught and published books from the 1950s through the 1970s. He received many honorary degrees and was a fel ...
calculated that Acheulean tools have an average useful cutting edge of , making them much more efficient than the average of Oldowan
The Oldowan (or Mode I) was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower ...
tools.
Use-wear analysis Use-wear analysis is a method in archaeology to identify the functions of artifact tools by closely examining their working surfaces and edges. It is mainly used on stone tools, and is sometimes referred to as "traceological analysis" (from the neo ...
on Acheulean tools suggests there was generally no specialization in the different types created and that they were multi-use implements. Functions included hacking wood from a tree, cutting animal carcasses as well as scraping and cutting hides when necessary. Some tools, however, could have been better suited to digging roots or butchering animals than others.
Alternative theories include a use for ovate hand-axes as a kind of hunting discus to be hurled at prey. Puzzlingly, there are also examples of sites where hundreds of hand-axes, many impractically large and also apparently unused, have been found in close association
Association may refer to:
*Club (organization), an association of two or more people united by a common interest or goal
*Trade association, an organization founded and funded by businesses that operate in a specific industry
*Voluntary associatio ...
together. Sites such as Melka Kunturé in Ethiopia
Ethiopia, , om, Itiyoophiyaa, so, Itoobiya, ti, ኢትዮጵያ, Ítiyop'iya, aa, Itiyoppiya officially the Federal Democratic Republic of Ethiopia, is a landlocked country in the Horn of Africa. It shares borders with Eritrea to the ...
, Olorgesailie
Olorgesailie is a geological formation in East Africa, on the floor of the Eastern Rift Valley in southern Kenya, southwest of Nairobi along the road to Lake Magadi. It contains a group of Lower Paleolithic archaeological sites. Olorgesaili ...
in Kenya, Isimila in Tanzania
Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and ...
, and Kalambo Falls
The Kalambo Falls on the Kalambo River is a single-drop waterfall on the border of Zambia and Rukwa Region, Tanzania at the southeast end of Lake Tanganyika. The falls are some of the tallest uninterrupted falls in Africa (after South Africa's ...
in Zambia
Zambia (), officially the Republic of Zambia, is a landlocked country at the crossroads of Central Africa, Central, Southern Africa, Southern and East Africa, although it is typically referred to as being in Southern Africa at its most cent ...
have produced evidence that suggests Acheulean hand-axes might not always have had a functional purpose.
Recently, it has been suggested that the Acheulean tool users adopted the handaxe as a social artifact, meaning that it embodied something beyond its function of a butchery or wood cutting tool. Knowing how to create and use these tools would have been a valuable skill and the more elaborate ones suggest that they played a role in their owners' identity and their interactions with others. This would help explain the apparent over-sophistication of some examples which may represent a "historically accrued social significance".
One theory goes further and suggests that some special hand-axes were made and displayed by males in search of a mate, using a large, well-made hand-axe to demonstrate that they possessed sufficient strength and skill to pass on to their offspring. Once they had attracted a female at a group gathering, it is suggested that they would discard their axes, perhaps explaining why so many are found together.
Hand-axe as a leftover core
Stone knapping with limited digital dexterity makes the center of mass the required direction of flake removal. Physics then dictates a circular or oval end pattern, similar to the handaxe, for a leftover core after flake production. This would explain the abundance, wide distribution, proximity to source, consistent shape, and lack of actual use, of these artifacts.
Money
Mimi Lam, a researcher from the University of British Columbia, has suggested that Acheulean hand-axes became "the first commodity: A marketable good or service that has value and is used as an item for exchange."
Distribution
The geographic distribution of Acheulean tools – and thus the peoples who made them – is often interpreted as being the result of palaeo-climatic and ecological
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps wi ...
factors, such as glaciation
A glacial period (alternatively glacial or glaciation) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate betw ...
and the desertification
Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly arid. It is the spread of arid areas caused by ...
of the Sahara Desert
, photo = Sahara real color.jpg
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.
Acheulean stone tools have been found across the continent of Africa, save for the dense rainforest
Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfores ...
around the River Congo
The Congo River ( kg, Nzâdi Kôngo, french: Fleuve Congo, pt, Rio Congo), formerly also known as the Zaire River, is the second longest river in Africa, shorter only than the Nile, as well as the second largest river in the world by discharge ...
which is not thought to have been colonized by hominids until later. It is thought that from Africa their use spread north and east to Asia: from Anatolia
Anatolia, tr, Anadolu Yarımadası), and the Anatolian plateau, also known as Asia Minor, is a large peninsula in Western Asia and the westernmost protrusion of the Asian continent. It constitutes the major part of modern-day Turkey. The re ...
, through the Arabian Peninsula
The Arabian Peninsula, (; ar, شِبْهُ الْجَزِيرَةِ الْعَرَبِيَّة, , "Arabian Peninsula" or , , "Island of the Arabs") or Arabia, is a peninsula of Western Asia, situated northeast of Africa on the Arabian Plate ...
, across modern day Iran
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
and Pakistan, and into India, and beyond. In Europe their users reached the Pannonian Basin
The Pannonian Basin, or Carpathian Basin, is a large Sedimentary basin, basin situated in south-east Central Europe. The Geomorphology, geomorphological term Pannonian Plain is more widely used for roughly the same region though with a somewh ...
and the western Mediterranean regions, modern day France, the Low Countries
The term Low Countries, also known as the Low Lands ( nl, de Lage Landen, french: les Pays-Bas, lb, déi Niddereg Lännereien) and historically called the Netherlands ( nl, de Nederlanden), Flanders, or Belgica, is a coastal lowland region in N ...
, western Germany, and southern and central Britain. Areas further north did not see human occupation until much later, due to glaciation. In Athirampakkam at Chennai
Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of th ...
in Tamil Nadu
Tamil Nadu (; , TN) is a States and union territories of India, state in southern India. It is the List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of India ...
the Acheulean age started at 1.51 mya and it is also prior than North India
North India is a loosely defined region consisting of the northern part of India. The dominant geographical features of North India are the Indo-Gangetic Plain and the Himalayas, which demarcate the region from the Tibetan Plateau and Central ...
and Europe.
Until the 1980s, it was thought that the humans who arrived in East Asia abandoned the hand-axe technology of their ancestors and adopted chopper tools instead. An apparent division between Acheulean and non-Acheulean tool industries was identified by Hallam L. Movius, who drew the Movius Line across northern India to show where the traditions seemed to diverge. Later finds of Acheulean tools at Chongokni in South Korea and also in Mongolia
Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 million, ...
and China, however, cast doubt on the reliability of Movius's distinction. Since then, a different division known as the Roe Line has been suggested. This runs across North Africa to Israel and thence to India, separating two different techniques used by Acheulean toolmakers. North and east of the Roe Line, Acheulean hand-axes were made directly from large stone nodules and cores; while, to the south and west, they were made from flakes struck from these nodules.
Acheulean tool users
Most notably, however, it is ''Homo ergaster
''Homo ergaster'' is an extinct species or subspecies of archaic humans who lived in Africa in the Early Pleistocene. Whether ''H. ergaster'' constitutes a species of its own or should be subsumed into ''Homo erectus, H. erectus'' is an ongoin ...
'' (sometimes called early ''Homo erectus
''Homo erectus'' (; meaning "upright man") is an extinct species of archaic human from the Pleistocene, with its earliest occurrence about 2 million years ago. Several human species, such as '' H. heidelbergensis'' and '' H. antecessor' ...
''), whose assemblages are almost exclusively Acheulean, who used the technique. Later, the related species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
''Homo heidelbergensis
''Homo heidelbergensis'' (also ''H. sapiens heidelbergensis''), sometimes called Heidelbergs, is an extinct species or subspecies of archaic human which existed during the Middle Pleistocene. It was subsumed as a subspecies of ''H. erectus'' in ...
'' (the common ancestor of both Neanderthals and ''Homo sapiens'') used it extensively.
Late Acheulean tools were still used by species derived from ''H. erectus'', including ''Homo sapiens idaltu
Herto Man refers to the 154,000 - 160,000-year-old human remains (''Homo sapiens'') discovered in 1997 from the Upper Herto member of the Bouri Formation in the Afar Triangle, Ethiopia. The discovery of Herto Man was especially significant at t ...
'' and early Neanderthal
Neanderthals (, also ''Homo neanderthalensis'' and erroneously ''Homo sapiens neanderthalensis''), also written as Neandertals, are an extinct species or subspecies of archaic humans who lived in Eurasia until about 40,000 years ago. While th ...
s.
The symmetry of the hand-axes has been used to suggest that Acheulean tool users possessed the ability to use language
Language is a structured system of communication. The structure of a language is its grammar and the free components are its vocabulary. Languages are the primary means by which humans communicate, and may be conveyed through a variety of met ...
; the parts of the brain connected with fine control and movement are located in the same region that controls speech. The wider variety of tool types compared to earlier industries and their aesthetically as well as functionally pleasing form could indicate a higher intellectual level in Acheulean tool users than in earlier hominine
Homininae (), also called "African hominids" or "African apes", is a subfamily of Hominidae. It includes two tribes, with their extant as well as extinct species: 1) the tribe Hominini (with the genus ''Homo'' including modern humans and numerou ...
s. Others argue that there is no correlation between spatial abilities in tool making and linguistic behaviour, and that language is not learned or conceived in the same manner as artefact manufacture.
Lower Palaeolithic finds made in association with Acheulean hand-axes, such as the Venus of Berekhat Ram
The Venus of Berekhat Ram (280,000-250,000 BP) is a pebble found at Berekhat Ram on the Golan Heights. The pebble was modified by early humans and is suggested to represent a female human figure.
Description
The object was excavated and first d ...
, have been used to argue for art
Art is a diverse range of human activity, and resulting product, that involves creative or imaginative talent expressive of technical proficiency, beauty, emotional power, or conceptual ideas.
There is no generally agreed definition of wha ...
istic expression amongst the tool users. The incised elephant
Elephants are the largest existing land animals. Three living species are currently recognised: the African bush elephant, the African forest elephant, and the Asian elephant. They are the only surviving members of the family Elephantidae an ...
tibia
The tibia (; ), also known as the shinbone or shankbone, is the larger, stronger, and anterior (frontal) of the two bones in the leg below the knee in vertebrates (the other being the fibula, behind and to the outside of the tibia); it connects ...
from Bilzingsleben in Germany, and ochre
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 ...
finds from Kapthurin
The Kapthurin Formation is a basalt outcrop in Kenya near Lake Bogoria and Lake Baringo.
Part of the East African Rift System, it is also an important archaeological site in the study of early humans who occupied the area and left Acheulean ston ...
in Kenya and Duinefontein in South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
, are sometimes cited as being some of the earliest examples of an aesthetic sensibility in human history. There are numerous other explanations put forward for the creation of these artefacts; however, evidence of human art did not become commonplace until around 50,000 years ago, after the emergence of modern ''Homo sapiens''.
The kill site at Boxgrove
Boxgrove is a village, ecclesiastical parish and civil parish in the Chichester District of the English county of West Sussex, about north east of the city of Chichester. The village is just south of the A285 road which follows the line of the R ...
in England is another famous Acheulean site. Up until the 1970s these kill sites, often at waterhole
A waterhole is a depression in the ground in which water can collect, or a more permanent pool in the bed of an ephemeral river.
Waterhole or water hole may refer to:
* Water hole (radio), an especially quiet region of the electromagnetic spect ...
s where animals would gather to drink, were interpreted as being where Acheulean tool users killed game, butchered their carcasses, and then discarded the tools they had used. Since the advent of zooarchaeology
Zooarchaeology (sometimes called archaeozoology), also known as faunal analysis, is a branch of archaeology that studies remains of animals from archaeological sites. Faunal remains are the items left behind when an animal dies. These include bon ...
, which has placed greater emphasis on studying animal bones from archaeological sites, this view has changed. Many of the animals at these kill sites have been found to have been killed by other predator animals, so it is likely that humans of the period supplemented hunting with scavenging from already dead animals.
Excavations at the Bnot Ya'akov Bridge
Daughters of Jacob Bridge ( he, גשר בנות יעקב, ''Gesher Bnot Ya'akov''; ar, جسر بنات يعقوب, ''Jisr Benat Ya'kub''). is a bridge that spans the last natural ford of the Jordan at the southern end of the Hula Basin between ...
site, located along the Dead Sea rift in the southern Hula Valley
The Hula Valley ( he, עמק החולה, translit. ''Emek Ha-Ḥula''; also transliterated as Huleh Valley, ar, سهل الحولة) is an agricultural region in northern Israel with abundant fresh water, which used to be Lake Hula, prior to ...
of northern Israel, have revealed evidence of human habitation in the area from as early as 750,000 years ago. Archaeologists from the Hebrew University of Jerusalem
The Hebrew University of Jerusalem (HUJI; he, הַאוּנִיבֶרְסִיטָה הַעִבְרִית בִּירוּשָׁלַיִם) is a public research university based in Jerusalem, Israel. Co-founded by Albert Einstein and Dr. Chaim Weiz ...
claim that the site provides evidence of "advanced human behavior" half a million years earlier than has previously been estimated. Their report describes an Acheulean layer at the site in which numerous stone tools, animal bones, and plant remains have been found.
Azykh cave
Azykh Cave ( az, Azıx mağarası), also referred to as Azokh Cave () is a six-cave complex in Azerbaijan, known as a habitation site of prehistoric humans. It is situated near the village of Azykh in the Khojavend District.
The cave is an impor ...
located in Azerbaijan
Azerbaijan (, ; az, Azərbaycan ), officially the Republic of Azerbaijan, , also sometimes officially called the Azerbaijan Republic is a transcontinental country located at the boundary of Eastern Europe and Western Asia. It is a part of th ...
is another site where Acheulean tools were found. In 1968, a lower jaw of a new type of hominid
The Hominidae (), whose members are known as the great apes or hominids (), are a taxonomic family of primates that includes eight extant species in four genera: '' Pongo'' (the Bornean, Sumatran and Tapanuli orangutan); ''Gorilla'' (the east ...
was discovered in the fifth layer (so-called Acheulean layer) of the cave. Specialists named this type "Azykhantrop
The Azykhantrop, or Azykh Man, is the lower jaw of a presumably female ''Homo heidelbergensis'' Accretion model of Neanderthal origins, pre-Neanderthal.
The fossil was found in the Azykh Cave in the Hadrut District (NKAO), Hadrut District of the ...
us".
Only limited artefactual evidence survives of the users of Acheulean tools other than the stone tools themselves. Cave sites were exploited for habitation, but the hunter-gatherers
A traditional hunter-gatherer or forager is a human living an ancestrally derived lifestyle in which most or all food is obtained by foraging, that is, by gathering food from local sources, especially edible wild plants but also insects, fungi, ...
of the Palaeolithic
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 too ...
also possibly built shelters such as those identified in connection with Acheulean tools at Grotte du Lazaret and Terra Amata near Nice
Nice ( , ; Niçard: , classical norm, or , nonstandard, ; it, Nizza ; lij, Nissa; grc, Νίκαια; la, Nicaea) is the prefecture of the Alpes-Maritimes department in France. The Nice agglomeration extends far beyond the administrative c ...
in France. The presence of the shelters is inferred from large rocks at the sites, which may have been used to weigh down the bottoms of tent-like structures or serve as foundations for huts or windbreaks. These stones may have been naturally deposited. In any case, a flimsy wood or animal skin structure would leave few archaeological traces after so much time. Fire
Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process of combustion, releasing heat, light, and various reaction Product (chemistry), products.
At a certain point in the combustion reaction, called the ignition ...
was seemingly being exploited by ''Homo ergaster'', and would have been a necessity in colonising colder Eurasia
Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago a ...
from Africa. Conclusive evidence of mastery over it this early is, however, difficult to find.
See also
*Oldowan
The Oldowan (or Mode I) was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower ...
*Lithic reduction
In archaeology, in particular of the Stone Age, lithic reduction is the process of fashioning stones or rocks from their natural state into tools or weapons by removing some parts. It has been intensely studied and many archaeological industrie ...
*Lower Palaeolithic
The Lower Paleolithic (or Lower Palaeolithic) is the earliest subdivision of the Paleolithic or Old Stone Age. It spans the time from around 3 million years ago when the first evidence for stone tool production and use by hominins appears in ...
*Palaeolithic
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 too ...
*Stone Age
The Stone Age was a broad prehistoric period during which stone was widely used to make tools with an edge, a point, or a percussion surface. The period lasted for roughly 3.4 million years, and ended between 4,000 BC and 2,000 BC, with t ...
*Stone tools
A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. Although stone tool-dependent societies and cultures still exist today, most stone tools are associated with prehistoric (particularly Stone Ag ...
*Hand axe
A hand axe (or handaxe or Acheulean hand axe) is a prehistoric stone tool with two faces that is the longest-used tool in human history, yet there is no academic consensus on what they were used for. It is made from stone, usually flint or che ...
*Ndutu cranium
The Ndutu skull is the partial cranium of a hominin that has been assigned variously to late '' Homo erectus'' ''Homo rhodesiensis'', and early ''Homo sapiens'', from the Middle Pleistocene, found at Lake Ndutu in northern Tanzania.
Discovery ...
References
Bibliography
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External links
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{{Authority control
Lower Paleolithic
Industries (archaeology)
Paleolithic cultures of Africa
Paleolithic cultures of Asia
Paleolithic cultures of Europe