Solutrean hypothesis
Encyclopedia
The Solutrean hypothesis proposes that peoples from Europe may have been among the earliest settlers in the Americas, as evidenced by similarities in stone tool technology of the Solutrean
Solutrean
The Solutrean industry is a relatively advanced flint tool-making style of the Upper Palaeolithic, from around 22,000 to 17,000 BP.-Details:...

 culture from prehistoric Europe to that of the later Clovis
Clovis culture
The Clovis culture is a prehistoric Paleo-Indian culture that first appears 11,500 RCYBP , at the end of the last glacial period, characterized by the manufacture of "Clovis points" and distinctive bone and ivory tools...

 tool-making culture found in the Americas. It was first proposed in 1998. Its key proponents include Dennis Stanford
Dennis Stanford
Dennis J. Stanford in Cherokee, Iowa is an archaeologist and Director of the Paleo-Indian Program at the National Museum of Natural History at the Smithsonian Institution. Along with Prof...

, of the Smithsonian Institution
Smithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...

, and Bruce Bradley, of the University of Exeter
University of Exeter
The University of Exeter is a public university in South West England. It belongs to the 1994 Group, an association of 19 of the United Kingdom's smaller research-intensive universities....

.

In this hypothesis, peoples associated with the Solutrean culture migrated from Ice Age
Ice age
An ice age or, more precisely, glacial age, is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers...

 Europe to North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

, bringing their methods of making stone tools with them and providing the basis for later Clovis technology found throughout North America. The hypothesis rests upon particular similarities in Solutrean and Clovis technology that have no known counterparts in Eastern Asia, Siberia
Siberia
Siberia is an extensive region constituting almost all of Northern Asia. Comprising the central and eastern portion of the Russian Federation, it was part of the Soviet Union from its beginning, as its predecessor states, the Tsardom of Russia and the Russian Empire, conquered it during the 16th...

 or Beringia, areas from which or through which early Americans are known to have migrated.

Characteristics

Solutrean culture was dominant in present-day France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 and Spain
Spain
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 from roughly 21,000 to 17,000 years ago. It was known for its distinctive toolmaking characterized by bifacial
Biface
In archaeology, a biface is a two-sided stone tool and is used as a multi purposes knife, manufactured through a process of lithic reduction, that displays flake scars on both sides. A profile view of the final product tends to exhibit a lenticular shape...

, percussion and pressure-flaked points. Traces of the Solutrean tool-making industry disappear almost completely from Europe around 15,000 years ago, when it was replaced by the stone tools of the Magdalenian
Magdalenian
The Magdalenian , refers to one of the later cultures of the Upper Paleolithic in western Europe, dating from around 17,000 BP to 9,000 BP...

 culture.

Clovis tools are typified by a distinctive type of spear
Spear
A spear is a pole weapon consisting of a shaft, usually of wood, with a pointed head.The head may be simply the sharpened end of the shaft itself, as is the case with bamboo spears, or it may be made of a more durable material fastened to the shaft, such as flint, obsidian, iron, steel or...

 point, known as the Clovis point
Clovis point
Clovis points are the characteristically-fluted projectile points associated with the North American Clovis culture. They date to the Paleoindian period around 13,500 years ago. Clovis fluted points are named after the city of Clovis, New Mexico, where examples were first found in 1929.At the right...

. Solutrean and Clovis points share common characteristics: points are thin and bifacial, and they share the intentional use of the overshot flaking technique, which quickly reduces the thickness of a biface without reducing the width.

The Clovis blade differs from the Solutrean in that some of the former have bi-facial fluting (a long depression that occurs on a point, struck from the basal end of the point; the purpose was to better fit the point onto a spear foreshaft). Clovis tool-making technology seems to appear in the archaeological record in eastern North America roughly 13,500 years ago, and similar predecessors in Asia or Alaska, if they exist, have not been discovered.

Atlantic crossing

The hypothesis proposes that Ice Age
Ice age
An ice age or, more precisely, glacial age, is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers...

 Europeans could have crossed the North Atlantic along the edge of the pack ice that extended from the Atlantic coast of France to North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

 during the last glacial maximum
Last Glacial Maximum
The Last Glacial Maximum refers to a period in the Earth's climate history when ice sheets were at their maximum extension, between 26,500 and 19,000–20,000 years ago, marking the peak of the last glacial period. During this time, vast ice sheets covered much of North America, northern Europe and...

. The model envisions these people making the crossing in small watercraft, using skills similar to those of the modern Inuit
Inuit
The Inuit are a group of culturally similar indigenous peoples inhabiting the Arctic regions of Canada , Denmark , Russia and the United States . Inuit means “the people” in the Inuktitut language...

 people, hauling out on ice floes at night, getting fresh water by melting iceberg
Iceberg
An iceberg is a large piece of ice from freshwater that has broken off from a snow-formed glacier or ice shelf and is floating in open water. It may subsequently become frozen into pack ice...

 ice or the first-frozen parts of sea ice
Sea ice
Sea ice is largely formed from seawater that freezes. Because the oceans consist of saltwater, this occurs below the freezing point of pure water, at about -1.8 °C ....

, getting food by catching seals and fish, and using seal
Pinniped
Pinnipeds or fin-footed mammals are a widely distributed and diverse group of semiaquatic marine mammals comprising the families Odobenidae , Otariidae , and Phocidae .-Overview: Pinnipeds are typically sleek-bodied and barrel-shaped...

 blubber
Blubber
Blubber is a thick layer of vascularized adipose tissue found under the skin of all cetaceans, pinnipeds and sirenians.-Description:Lipid-rich, collagen fiber–laced blubber comprises the hypodermis and covers the whole body, except for parts of the appendages, strongly attached to the musculature...

 as heating fuel. Among other evidence backing up this hypothesis is the discovery among the Solutrean toolkit of bone needles, very similar to those traditionally used by the modern-day Inuit
Inuit
The Inuit are a group of culturally similar indigenous peoples inhabiting the Arctic regions of Canada , Denmark , Russia and the United States . Inuit means “the people” in the Inuktitut language...

. As well as enabling the manufacture of waterproof clothing from animal skins, the technology could, in theory, have been used to construct kayaks from the same animal skins. However, a 2008 study (see below) argues that the conditions were not favorable for such a crossing.

Transitional styles

Supporters of the hypothesis suggest that stone tools found at Cactus Hill
Cactus Hill
Cactus Hill is an archaeological site in southeastern Virginia, United States. The site sits on sand dunes above the Nottoway River and lies about 45 miles south of Richmond. The site is owned by the International Paper Corporation....

 (an early American site in Virginia) indicate a transitional style between the Clovis and Solutrean cultures. Artifacts from this site are estimated to date from 17,000 to 15,000 years ago, although some researchers dispute their definitive age. Other sites that may indicate transitional, pre-Clovis occupation include the Page-Ladson site
Page-Ladson prehistory site
The Page-Ladson prehistory site is a deep hole in the bed of the Aucilla River that has stratified deposits of late Pleistocene and early Holocene animal bones and human artifacts reaching back to about 14,500 to 12,500 calendar years Before Present...

 in Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 and the Meadowcroft rockshelter in Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

.

Recent genetic research

An article in the American Journal of Human Genetics by researchers in Brazil argued against the Solutrean hypothesis. "Our results strongly support the hypothesis that haplogroup X, together with the other four main mtDNA haplogroups, was part of the gene pool of a single Native American founding population; therefore they do not support models that propose haplogroup-independent migrations, such as the migration from Europe posed by the Solutrean hypothesis."

Challenges to the Solutrean hypothesis

Arthur J. Jelinek, an anthropologist who noted similarities between Solutrean and Clovis styles in a 1971 study, noted that the great geographical and temporal separation of the two cultures made a direct connection unlikely. He also noted that crossing the Atlantic with the technology of the time would have been difficult if not impossible, an observation repeated by Lawrence G. Straus, who wrote that " there are no representations of boats and no evidence whatsoever either of seafaring or of the ability to make a living mainly or solely from the ocean during the Solutrean." However, Straus excavated Solutrean artifacts along what is now a coastline in Cantabria
Cantabria
Cantabria is a Spanish historical region and autonomous community with Santander as its capital city. It is bordered on the east by the Basque Autonomous Community , on the south by Castile and León , on the west by the Principality of Asturias, and on the north by the Cantabrian Sea.Cantabria...

, which was not coastal at the time of Solutreans, finding seashell
Seashell
A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer created by an animal that lives in the sea. The shell is part of the body of the animal. Empty seashells are often found washed up on beaches by beachcombers...

s and estuarine fish at the sites, but no evidence of exploiting deep sea resources. In addition, the dates of the proposed transitional sites and the Solutrean period in Europe only overlap at the extremes.

Another challenge to the hypothesis involves the apparent lack of cultural or artistic practices being passed on from Solutrean culture to Clovis culture, for instance the style of Solutrean artwork found at Altamira
Altamira (cave)
Altamira is a cave in Spain famous for its Upper Paleolithic cave paintings featuring drawings and polychrome rock paintings of wild mammals and human hands....

 in Spain and Lascaux
Lascaux
Lascaux is the setting of a complex of caves in southwestern France famous for its Paleolithic cave paintings. The original caves are located near the village of Montignac, in the department of Dordogne. They contain some of the best-known Upper Paleolithic art. These paintings are estimated to be...

 in France. In response, Bradley and Stanford contend that it was "a very specific subset of the Solutrean who formed the parent group that adapted to a maritime environment and eventually made it across the north Atlantic ice-front to colonize the east coast of the Americas" and that this group may not have shared all Solutrean cultural traits. A carved piece of bone depicting a mammoth
Mammoth
A mammoth is any species of the extinct genus Mammuthus. These proboscideans are members of Elephantidae, the family of elephants and mammoths, and close relatives of modern elephants. They were often equipped with long curved tusks and, in northern species, a covering of long hair...

 found near the Vero man site in Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 has been dated to 13,000 to 20,000 years ago. It is described as possibly being the oldest art object yet found in the Americas, and may provide support for the Solutrean hypothesis. Art historian Barbara Olins has compared the Vero mammoth carving to "Franco-Cantabrian" drawings and engravings of mammoths. She notes that the San
Bushmen
The indigenous people of Southern Africa, whose territory spans most areas of South Africa, Zimbabwe, Lesotho, Mozambique, Swaziland, Botswana, Namibia, and Angola, are variously referred to as Bushmen, San, Sho, Barwa, Kung, or Khwe...

 of southern Africa developed a realistic style of depicting animals similar to the "Franco-Cantabrian" style, indicating that an independent development of such a style in North America is possible.

In a 2008 study of relevant oceanographic
Oceanography
Oceanography , also called oceanology or marine science, is the branch of Earth science that studies the ocean...

 data from the time-period in question, Kieran Westley and Justin Dix concluded that "it is clear from the paleoceanographic and paleo-environmental data that the LGM
Last Glacial Maximum
The Last Glacial Maximum refers to a period in the Earth's climate history when ice sheets were at their maximum extension, between 26,500 and 19,000–20,000 years ago, marking the peak of the last glacial period. During this time, vast ice sheets covered much of North America, northern Europe and...

 North Atlantic does not fit the descriptions provided by the proponents of the Solutrean Atlantic Hypothesis. Although ice use and sea mammal hunting may have been important in other contexts, in this instance, the conditions militate against an ice-edge-following, maritime-adapted European population reaching the Americas."; taking the position that according to their analysis of the evidence they examined (primarily the believed location of the ice shelf at the time in question.), they do not believe the Solutrean culture or elements of it could have undertaken any transoceanic crossing into North America utilizing the glacial ice-sheets. It is however difficult to draw any definitive conclusions from studies undertaken thus-far as the most conclusive evidence on this question would be found in coastal settlements from the time-period, but the overwhelming majority of the coastline from the time-period is now submerged under the Atlantic Ocean and at present inaccessible to intensive archeological research. As such there has yet to be any reliable proof from either proponents or opponents of the theory, and it remains an unresolved issue in the field of Archeology.

External links

  • Stone Age sailors 'beat Columbus to America' (The Guardian
    The Guardian
    The Guardian, formerly known as The Manchester Guardian , is a British national daily newspaper in the Berliner format...

    , 1999)
  • Coming into America: Tracing the Genes (PBS
    Public Broadcasting Service
    The Public Broadcasting Service is an American non-profit public broadcasting television network with 354 member TV stations in the United States which hold collective ownership. Its headquarters is in Arlington, Virginia....

    , 2004)
  • Stone Age Columbus (BBC
    BBC
    The British Broadcasting Corporation is a British public service broadcaster. Its headquarters is at Broadcasting House in the City of Westminster, London. It is the largest broadcaster in the world, with about 23,000 staff...

     2002)
  • Ice Age Columbus: Who Were the First Americans? (Discovery Channel
    Discovery Channel
    Discovery Channel is an American satellite and cable specialty channel , founded by John Hendricks and distributed by Discovery Communications. It is a publicly traded company run by CEO David Zaslav...

    2005)
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