Hawaii is the 50th and most recent state to have joined the United States, having received statehood on August 21, 1959. Hawaii is the only U. S. state located in Oceania, the only U. S. state located outside North America, the only one composed of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean; the state encompasses nearly the entire volcanic Hawaiian archipelago, which comprises hundreds of islands spread over 1,500 miles. At the southeastern end of the archipelago, the eight main islands are—in order from northwest to southeast: Niʻihau, Kauaʻi, Oʻahu, Molokaʻi, Lānaʻi, Kahoʻolawe and the Island of Hawaiʻi; the last is the largest island in the group. The archipelago is ethnologically part of the Polynesian subregion of Oceania. Hawaii's diverse natural scenery, warm tropical climate, abundance of public beaches, oceanic surroundings, active volcanoes make it a popular destination for tourists, surfers and volcanologists.
Because of its central location in the Pacific and 19th-century labor migration, Hawaii's culture is influenced by North American and East Asian cultures, in addition to its indigenous Hawaiian culture. Hawaii has over a million permanent residents, along with many visitors and U. S. military personnel. Its capital is Honolulu on the island of Oʻahu. Hawaii is the 8th-smallest and the 11th-least populous, but the 13th-most densely populated of the 50 U. S. states. It is the only state with an Asian plurality; the state's oceanic coastline is about 750 miles long, the fourth longest in the U. S. after the coastlines of Alaska and California. The state of Hawaii derives its name from the name of Hawaiʻi. A common Hawaiian explanation of the name of Hawaiʻi is that it was named for Hawaiʻiloa, a legendary figure from Hawaiian myth, he is said to have discovered the islands. The Hawaiian language word Hawaiʻi is similar to Proto-Polynesian *Sawaiki, with the reconstructed meaning "homeland". Cognates of Hawaiʻi are found in other Polynesian languages, including Māori and Samoan.
According to linguists Pukui and Elbert, "lsewhere in Polynesia, Hawaiʻi or a cognate is the name of the underworld or of the ancestral home, but in Hawaii, the name has no meaning". A somewhat divisive political issue arose in 1978 when the Constitution of the State of Hawaii added Hawaiian as a second official state language; the title of the state constitution is The Constitution of the State of Hawaii. Article XV, Section 1 of the Constitution uses The State of Hawaii. Diacritics were not used because the document, drafted in 1949, predates the use of the ʻokina and the kahakō in modern Hawaiian orthography; the exact spelling of the state's name in the Hawaiian language is Hawaiʻi. In the Hawaii Admission Act that granted Hawaiian statehood, the federal government recognized Hawaii as the official state name. Official government publications and office titles, the Seal of Hawaii use the traditional spelling with no symbols for glottal stops or vowel length. In contrast, the National and State Parks Services, the University of Hawaiʻi and some private enterprises implement these symbols.
No precedent for changes to U. S. state names exists since the adoption of the United States Constitution in 1789. However, the Constitution of Massachusetts formally changed the Province of Massachusetts Bay to the Commonwealth of Massachusetts in 1780, in 1819, the Territory of Arkansaw was created but was admitted to statehood as the State of Arkansas. There are eight main Hawaiian islands; the island of Niʻihau is managed by brothers Bruce and Keith Robinson. Access to uninhabited Kahoʻolawe island is restricted; the Hawaiian archipelago is located 2,000 mi southwest of the contiguous United States. Hawaii is the southernmost U. S. the second westernmost after Alaska. Hawaii, like Alaska, does not border any other U. S. state. It is the only U. S. state, not geographically located in North America, the only state surrounded by water and, an archipelago, the only state in which coffee is commercially cultivable. In addition to the eight main islands, the state has many smaller islets. Kaʻula is a small island near Niʻihau.
The Northwest Hawaiian Islands is a group of nine small, older islands to the northwest of Kauaʻi that extend from Nihoa to Kure Atoll. Across the archipelago are around 130 small rocks and islets, such as Molokini, which are either volcanic, marine sedimentary or erosional in origin. Hawaii's tallest mountain Mauna Kea is 13,796 ft above mean sea level; the Hawaiian islands were formed by volcanic activity initiated at an undersea magma source called the Hawaii hotspot. The process is continuing to build islands; because of the hotspot's location, all active land volcanoes are located on the southern half of Hawaii Island. The newest volcano, Lōʻihi Seamount, is located south of the coast of Hawaii Island; the last volcanic eruption outside Hawaii Island occurred
Ohio is a Midwestern state in the Great Lakes region of the United States. Of the fifty states, it is the 34th largest by area, the seventh most populous, the tenth most densely populated; the state's capital and largest city is Columbus. The state takes its name from the Ohio River, whose name in turn originated from the Seneca word ohiːyo', meaning "good river", "great river" or "large creek". Partitioned from the Northwest Territory, Ohio was the 17th state admitted to the Union on March 1, 1803, the first under the Northwest Ordinance. Ohio is known as the "Buckeye State" after its Ohio buckeye trees, Ohioans are known as "Buckeyes". Ohio rose from the wilderness of Ohio Country west of Appalachia in colonial times through the Northwest Indian Wars as part of the Northwest Territory in the early frontier, to become the first non-colonial free state admitted to the union, to an industrial powerhouse in the 20th century before transmogrifying to a more information and service based economy in the 21st.
The government of Ohio is composed of the executive branch, led by the Governor. Ohio occupies 16 seats in the United States House of Representatives. Ohio is known for its status as both a bellwether in national elections. Six Presidents of the United States have been elected. Ohio is an industrial state, ranking 8th out of 50 states in GDP, is the second largest producer of automobiles behind Michigan. Ohio's geographic location has proven to be an asset for economic expansion; because Ohio links the Northeast to the Midwest, much cargo and business traffic passes through its borders along its well-developed highways. Ohio has the nation's 10th largest highway network and is within a one-day drive of 50% of North America's population and 70% of North America's manufacturing capacity. To the north, Lake Erie gives Ohio 312 miles of coastline. Ohio's southern border is defined by the Ohio River, much of the northern border is defined by Lake Erie. Ohio's neighbors are Pennsylvania to the east, Michigan to the northwest, Lake Erie to the north, Indiana to the west, Kentucky on the south, West Virginia on the southeast.
Ohio's borders were defined by metes and bounds in the Enabling Act of 1802 as follows: Bounded on the east by the Pennsylvania line, on the south by the Ohio River, to the mouth of the Great Miami River, on the west by the line drawn due north from the mouth of the Great Miami aforesaid, on the north by an east and west line drawn through the southerly extreme of Lake Michigan, running east after intersecting the due north line aforesaid, from the mouth of the Great Miami until it shall intersect Lake Erie or the territorial line, thence with the same through Lake Erie to the Pennsylvania line aforesaid. Ohio is bounded by the Ohio River, but nearly all of the river itself belongs to Kentucky and West Virginia. In 1980, the U. S. Supreme Court held that, based on the wording of the cessation of territory by Virginia, the boundary between Ohio and Kentucky is the northern low-water mark of the river as it existed in 1792. Ohio has only that portion of the river between the river's 1792 low-water mark and the present high-water mark.
The border with Michigan has changed, as a result of the Toledo War, to angle northeast to the north shore of the mouth of the Maumee River. Much of Ohio features glaciated till plains, with an exceptionally flat area in the northwest being known as the Great Black Swamp; this glaciated region in the northwest and central state is bordered to the east and southeast first by a belt known as the glaciated Allegheny Plateau, by another belt known as the unglaciated Allegheny Plateau. Most of Ohio is of low relief, but the unglaciated Allegheny Plateau features rugged hills and forests; the rugged southeastern quadrant of Ohio, stretching in an outward bow-like arc along the Ohio River from the West Virginia Panhandle to the outskirts of Cincinnati, forms a distinct socio-economic unit. Geologically similar to parts of West Virginia and southwestern Pennsylvania, this area's coal mining legacy, dependence on small pockets of old manufacturing establishments, distinctive regional dialect set this section off from the rest of the state.
In 1965 the United States Congress passed the Appalachian Regional Development Act, an attempt to "address the persistent poverty and growing economic despair of the Appalachian Region." This act defines 29 Ohio counties as part of Appalachia. While 1/3 of Ohio's land mass is part of the federally defined Appalachian region, only 12.8% of Ohioans live there Significant rivers within the state include the Cuyahoga River, Great Miami River, Maumee River, Muskingum River, Scioto River. The rivers in the northern part of the state drain into the northern Atlantic Ocean via Lake Erie and the St. Lawrence River, the rivers in the southern part of the state drain into the Gulf of Mexico via the Ohio River and the Mississippi; the worst weather disaster in Ohio history occurred along the Great Miami River in 1913. Known as the Great Dayton Flood, the entire Miami River watershed flooded, including the downtown business district of Dayton; as a result, the Miami Conservancy District was created as the first major flood plain engineering project in Ohio and the United States.
Grand Lake St. Marys in the west-central part of the state was constructed as a supply of water for ca
Native Americans in the United States
Native Americans known as American Indians, Indigenous Americans and other terms, are the indigenous peoples of the United States, except Hawaii. There are over 500 federally recognized tribes within the US, about half of which are associated with Indian reservations; the term "American Indian" excludes Native Hawaiians and some Alaska Natives, while Native Americans are American Indians, plus Alaska Natives of all ethnicities. Native Hawaiians are not counted as Native Americans by the US Census, instead being included in the Census grouping of "Native Hawaiian and other Pacific Islander"; the ancestors of modern Native Americans arrived in what is now the United States at least 15,000 years ago much earlier, from Asia via Beringia. A vast variety of peoples and cultures subsequently developed. Native Americans were affected by the European colonization of the Americas, which began in 1492, their population declined precipitously due to introduced diseases as well as warfare, territorial confiscation and slavery.
After the founding of the United States, many Native American peoples were subjected to warfare and one-sided treaties, they continued to suffer from discriminatory government policies into the 20th century. Since the 1960s, Native American self-determination movements have resulted in changes to the lives of Native Americans, though there are still many contemporary issues faced by Native Americans. Today, there are over five million Native Americans in the United States, 78% of whom live outside reservations; when the United States was created, established Native American tribes were considered semi-independent nations, as they lived in communities separate from British settlers. The federal government signed treaties at a government-to-government level until the Indian Appropriations Act of 1871 ended recognition of independent native nations, started treating them as "domestic dependent nations" subject to federal law; this law did preserve the rights and privileges agreed to under the treaties, including a large degree of tribal sovereignty.
For this reason, many Native American reservations are still independent of state law and actions of tribal citizens on these reservations are subject only to tribal courts and federal law. The Indian Citizenship Act of 1924 granted U. S. citizenship to all Native Americans born in the United States. This emptied the "Indians not taxed" category established by the United States Constitution, allowed natives to vote in state and federal elections, extended the Fourteenth Amendment protections granted to people "subject to the jurisdiction" of the United States. However, some states continued to deny Native Americans voting rights for several decades. Bill of Rights protections do not apply to tribal governments, except for those mandated by the Indian Civil Rights Act of 1968. Since the end of the 15th century, the migration of Europeans to the Americas has led to centuries of population and agricultural transfer and adjustment between Old and New World societies, a process known as the Columbian exchange.
As most Native American groups had preserved their histories by oral traditions and artwork, the first written sources of the conflict were written by Europeans. Ethnographers classify the indigenous peoples of North America into ten geographical regions with shared cultural traits, called cultural areas; some scholars combine the Plateau and Great Basin regions into the Intermontane West, some separate Prairie peoples from Great Plains peoples, while some separate Great Lakes tribes from the Northeastern Woodlands. The ten cultural areas are as follows: Arctic, including Aleut and Yupik peoples Subarctic Northeastern Woodlands Southeastern Woodlands Great Plains Great Basin Northwest Plateau Northwest Coast California Southwest At the time of the first contact, the indigenous cultures were quite different from those of the proto-industrial and Christian immigrants; some Northeastern and Southwestern cultures, in particular, were matrilineal and operated on a more collective basis than that with which Europeans were familiar.
The majority of Indigenous American tribes maintained their hunting grounds and agricultural lands for use of the entire tribe. Europeans at that time had patriarchal cultures and had developed concepts of individual property rights with respect to land that were different; the differences in cultures between the established Native Americans and immigrant Europeans, as well as shifting alliances among different nations in times of war, caused extensive political tension, ethnic violence, social disruption. Before the European settlement of what is now the United States, Native Americans suffered high fatalities from contact with new European diseases, to which they had not yet acquired immunity. Smallpox epidemics are thought to have caused the greatest loss of life for indigenous populations. William M Denevan, noted author and Professor Emeritus of Geography at the University of Wisconsin-Madison, said on this subject in his essay "The Pristine Myth: The Landscape of the Americas in 1492".
Old World diseases were the primary killer. In many regions the tropical lowlands, populations fell by 90 percent or more in the first century after the contact. "Estimates of the pre-Columbian population of what today constitutes the U. S. vary ranging from William M Denevan's 3.8 million in his 1992 w
Alabama is a state in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east and the Gulf of Mexico to the south, Mississippi to the west. Alabama is the 30th largest by area and the 24th-most populous of the U. S. states. With a total of 1,500 miles of inland waterways, Alabama has among the most of any state. Alabama is nicknamed the Yellowhammer State, after the state bird. Alabama is known as the "Heart of Dixie" and the "Cotton State"; the state tree is the longleaf pine, the state flower is the camellia. Alabama's capital is Montgomery; the largest city by population is Birmingham. The oldest city is Mobile, founded by French colonists in 1702 as the capital of French Louisiana. From the American Civil War until World War II, like many states in the southern U. S. suffered economic hardship, in part because of its continued dependence on agriculture. Similar to other former slave states, Alabamian legislators employed Jim Crow laws to disenfranchise and otherwise discriminate against African Americans from the end of the Reconstruction Era up until at least the 1970s.
Despite the growth of major industries and urban centers, white rural interests dominated the state legislature from 1901 to the 1960s. During this time, urban interests and African Americans were markedly under-represented. Following World War II, Alabama grew as the state's economy changed from one based on agriculture to one with diversified interests; the state's economy in the 21st century is based on management, finance, aerospace, mineral extraction, education and technology. The European-American naming of the Alabama River and state was derived from the Alabama people, a Muskogean-speaking tribe whose members lived just below the confluence of the Coosa and Tallapoosa rivers on the upper reaches of the river. In the Alabama language, the word for a person of Alabama lineage is Albaamo; the suggestion that "Alabama" was borrowed from the Choctaw language is unlikely. The word's spelling varies among historical sources; the first usage appears in three accounts of the Hernando de Soto expedition of 1540: Garcilaso de la Vega used Alibamo, while the Knight of Elvas and Rodrigo Ranjel wrote Alibamu and Limamu in transliterations of the term.
As early as 1702, the French called the tribe the Alibamon, with French maps identifying the river as Rivière des Alibamons. Other spellings of the name have included Alibamu, Albama, Alibama, Alabamu, Allibamou. Sources disagree on the word's meaning; some scholars suggest the word comes from amo. The meaning may have been "clearers of the thicket" or "herb gatherers", referring to clearing land for cultivation or collecting medicinal plants; the state has numerous place names of Native American origin. However, there are no correspondingly similar words in the Alabama language. An 1842 article in the Jacksonville Republican proposed it meant "Here We Rest." This notion was popularized in the 1850s through the writings of Alexander Beaufort Meek. Experts in the Muskogean languages have not found any evidence to support such a translation. Indigenous peoples of varying cultures lived in the area for thousands of years before the advent of European colonization. Trade with the northeastern tribes by the Ohio River began during the Burial Mound Period and continued until European contact.
The agrarian Mississippian culture covered most of the state from 1000 to 1600 AD, with one of its major centers built at what is now the Moundville Archaeological Site in Moundville, Alabama. This is the second-largest complex of the classic Middle Mississippian era, after Cahokia in present-day Illinois, the center of the culture. Analysis of artifacts from archaeological excavations at Moundville were the basis of scholars' formulating the characteristics of the Southeastern Ceremonial Complex. Contrary to popular belief, the SECC appears to have no direct links to Mesoamerican culture, but developed independently; the Ceremonial Complex represents a major component of the religion of the Mississippian peoples. Among the historical tribes of Native American people living in present-day Alabama at the time of European contact were the Cherokee, an Iroquoian language people. While part of the same large language family, the Muskogee tribes developed distinct cultures and languages. With exploration in the 16th century, the Spanish were the first Europeans to reach Alabama.
The expedition of Hernando de Soto passed through Mabila and other parts of the state in 1540. More than 160 years the French founded the region's first European settlement at Old Mobile in 1702; the city was moved to the current site of Mobile in 1711. This area was claimed by the French from 1702 to 1763 as part of La Louisiane. After the French lost to the British in the Seven Years' War, it became part of British West Florida from 1763 to 1783. After the United States victory in the American Revolutionary War, the territory was divided between the United States and Spain; the latter retained control of this western territory from 1783 until the surrender of the Spanish garrison at Mobile to U. S. forces on April 13, 1813. Thomas Bassett, a loyalist to the British monarchy during the Revolutionary era, was one of the earliest white settlers in the state
Bhimbetka rock shelters
The Bhimbetka rock shelters are an archaeological site in central India that spans the prehistoric paleolithic and mesolithic periods, as well as the historic period. It exhibits the earliest traces of human life on the Indian subcontinent and evidence of Stone Age starting at the site in Acheulian times, it is located in the Raisen District in the Indian state of Madhya Pradesh about 45 kilometres southeast of Bhopal. It is a UNESCO world heritage site that consists of seven hills and over 750 rock shelters distributed over 10 kilometres. At least some of the shelters were inhabited more than 100,000 years ago; the rock shelters and caves provide evidence of, according to Encyclopædia Britannica, a "rare glimpse" into human settlement and cultural evolution from hunter-gatherers, to agriculture, expressions of spirituality. Some of the Bhimbetka rock shelters feature prehistoric cave paintings and the earliest are about 30,000 years old; these cave paintings show themes such as early evidence of dance and hunting.
The Bhimbetka site has the oldest known rock art in the Indian subcontinent, as well as is one of the largest prehistoric complexes. The name Bhimbetka is associated with a hero-deity of the epic Mahabharata; the word Bhimbetka is said to derive from Bhimbaithka, meaning "sitting place of Bhima". The Rock Shelters of Bhimbetka is 45 kilometers southeast of Bhopal and 9 km from Obedullaganj city in the Raisen District of Madhya Pradesh at the southern edge of the Vindhya hills. South of these rock shelters are successive ranges of the Satpura hills, it is inside the Ratapani Wildlife Sanctuary, embedded in sandstone rocks, in the foothills of the Vindhya Range. The site consists of seven hills: Vinayaka, Bhimbetka, Lakha Juar and Muni Babaki Pahari. W. Kincaid, a British India era official, first mentioned Bhimbetka in a scholarly paper in 1888, he relied on the information he gathered from local adivasis about Bhojpur lake in the area and referred to Bhimbetka as a Buddhist site. The first archaeologist to visit a few caves at the site and discover its prehistoric significance was V. S. Wakankar, who saw these rock formations and thought these were similar to those he had seen in Spain and France.
He visited the area with a team of archaeologists and reported several prehistoric rock shelters in 1957. It was only in the 1970s that the scale and true significance of the Bhimbetka rock shelters was discovered and reported. Since more than 750 rock shelters have been identified; the Bhimbetka group contains 243 of these. According to Archaeological Survey of India, the evidence suggests that there has been a continuous human settlement here from the Stone Age through the late Acheulian to the late Mesolithic until the 2nd-century BCE in these hills; this is based on excavations at the site, the discovered artifacts and wares, pigments in deposits, as well as the rock paintings. The site contains the world's oldest stone floors. Barkheda has been identified as the source of the raw materials used in some of the monoliths discovered at Bhimbetka; the site consisting of 1,892 hectares was declared as protected under Indian laws and came under the management of the Archaeological Survey of India in 1990.
It was declared as a world heritage site by UNESCO in 2003. Of the numerous shelters, the Auditorium cave is one of the significant features of the site. Surrounded by quartzite towers which are visible from several kilometers distance, the Auditorium rock is the largest shelter at Bhimbetka. Robert Bednarik describes the prehistoric Auditorium cave as one with a "cathedral-like" atmosphere, with "its Gothic arches and soaring spaces", its plan resembles a "right-angled cross" with four of its branches aligned to the four cardinal directions. The main entrance points to the east. At the end of this eastern passage, at the cave's entrance, is a boulder with a near-vertical panel, distinctive, one visible from distance and all directions. In archaeology literature, this boulder has been dubbed as "Chief's Rock" or "King's Rock", though there is no evidence of any rituals or its role as such; the boulder with the Auditorium Cave is the central feature of the Bhimbetka, midst its 754 numbered shelters spread over few kilometers on either side, nearly 500 locations where rock paintings can be found, states Bednarik.
The rock shelters and caves of Bhimbetka have a large number of paintings. The oldest paintings are found to be 30,000 years old, but some of the geometric figures date to as as the medieval period; the colors used are vegetable colors which have endured through time because the drawings were made deep inside a niche or on inner walls. The drawings and paintings can be classified under seven different periods. Period I –: These are linear representations, in green and dark red, of huge figures of animals such as bison and rhinoceroses. Period II –: Comparatively small in size the stylised figures in this group show linear decorations on the body. In addition to animals there are human figures and hunting scenes, giving a clear picture of the weapons they used: barbed spears, pointed sticks and arrows; some scenes are interpreted as depicting tribal war between three tribes symbolised by their animal totems. The depiction of communal dances, musical instruments and children, pregnant women, men carrying dead animals and burials appear in rhythmic movement.
Period III – Similar to the paintings of the Mesolithic, these drawings reveal that during this period the cave dwellers of this area were in contact with the agricultural communities of the Malwa plains, exchanging goods with them. Period IV
A glacial erratic is a piece of rock that differs from the size and type of rock native to the area in which it rests. "Erratics" take their name from the Latin word errare, are carried by glacial ice over distances of hundreds of kilometres. Erratics can range in size from pebbles to large boulders such as Big Rock in Alberta. Geologists identify erratics by studying the rocks surrounding the position of the erratic and the composition of the erratic itself. Erratics are significant because: They can be transported by glaciers, they are thereby one of a series of indicators which mark the path of prehistoric glacier movement, their lithographic origin can be traced to the parent bedrock, allowing for confirmation of the ice flow route. They can be transported by ice rafting; this allows quantification of the extent of glacial flooding resulting from ice dam failure which release the waters stored in proglacial lakes such as Lake Missoula. Erratics released by ice-rafts that were stranded and subsequently melt, dropping their load, allow characterization of the high-water marks for transient floods in areas like temporary Lake Lewis.
Erratics dropped by icebergs melting in the ocean can be used to track Antarctic and Arctic-region glacial movements for periods prior to record retention. Known as dropstones, these can be correlated with ocean temperatures and levels to better understand and calibrate models of the global climate; the term "erratic" is used to refer to erratic blocks, which Geikie describes as: "large masses of rock as big as a house, that have been transported by glacier-ice, have been lodged in a prominent position in the glacier valleys or have been scattered over hills and plains. And examination of their mineralogical character leads the identification of their sources…". In geology, an erratic is material moved by geologic forces from one location to another by a glacier. Erratics are formed by glacial ice erosion resulting from the movement of ice. Glaciers erode by multiple processes: abrasion/scouring, ice thrusting and glacially-induced spalling. Glaciers crack pieces of bedrock off in the process of producing the larger erratics.
In an abrasion process, debris in the basal ice scrapes along the bed and gouging the underlying rocks, similar to sandpaper on wood, producing smaller glacial till. In ice thrusting, the glacier freezes to its bed as it surges forward, it moves large sheets of frozen sediment at the base along with the glacier. Glacially-induced spalling occurs when ice lens formation with the rocks below the glacier spall off layers of rock, providing smaller debris, ground into the glacial basal material to become till. Evidence supports another option for creation of erratics as well, rock avalanches onto the upper surface of the glacier. Rock avalanche–supraglacial transport occurs when the glacier undercuts a rock face, which fails by avalanche onto the upper surface of the glacier; the characteristics of rock avalanche–supraglacial transport includes: Monolithologic composition – a cluster of boulders of similar composition are found in close proximity. Commingling of the multiple lithologies present throughout the glaciated basin, has not occurred.
Angularity – the supraglacially transported rocks tend to be rough and irregular, with no sign of subglacial abrasion. The sides of boulders are planar, suggesting that some surfaces may be original fracture planes. Great size – the size distribution of the boulders tends to be skewed toward larger boulders than those produced subglacially. Surficial positioning of the boulders – the boulders are positioned on the surface of glacial deposits, as opposed to or buried. Restricted areal extents – the boulder fields tend to have limited areal extent. Orientations – the boulders may be close enough that original fracture planes can be matched. Locations of the boulder trains – the boulders appear in rows, trains or clusters along the lateral moraines as opposed to being located on the terminal moraine or in the general glacial field. Erratics provide an important tool in characterizing the directions of glacier flows, which are reconstructed used on a combination of moraines, drumlins, meltwater channels, similar data.
Erratic distributions and glacial till properties allow for identification of the source rock from which they derive, which confirms the flow direction when the erratic source outcrop is unique to a limited locality. Erratic materials may be transported by multiple glacier flows prior to their deposition, which can complicate the reconstruction of the glacial flow. Glacial ice entrains debris of varying sizes from small particles to large masses of rock; this debris is transported to the coast by glacier ice and released during the production and melting of icebergs. The rate of debris release by ice depends upon the size of the ice mass in which it is carried as well as the temperature of the ocean through which the ice floe passes. Sediments from the late Pleistocene period lying on the floor of the North Atlantic show a series of layers which contain ice-rafted debris, they were formed between 70,000 years before the present. The deposited debris can be traced back to the origin by both the nature of the materials released and the continuous path of debris release.
Some paths extend more than 3,000 kilometres distant from the point at which the ice floes broke free. The location and altitude of ice-rafted boulders r
The Celts are an Indo-European ethnolinguistic group of Europe identified by their use of Celtic languages and cultural similarities. The history of pre-Celtic Europe and the exact relationship between ethnic and cultural factors in the Celtic world remains uncertain and controversial; the exact geographic spread of the ancient Celts is disputed. According to one theory, the common root of the Celtic languages, the Proto-Celtic language, arose in the Late Bronze Age Urnfield culture of Central Europe, which flourished from around 1200 BC. According to a theory proposed in the 19th century, the first people to adopt cultural characteristics regarded as Celtic were the people of the Iron Age Hallstatt culture in central Europe, named for the rich grave finds in Hallstatt, Austria, thus this area is sometimes called the "Celtic homeland". By or during the La Tène period, this Celtic culture was supposed to have expanded by trans-cultural diffusion or migration to the British Isles and the Low Countries, Bohemia and much of Central Europe, the Iberian Peninsula and northern Italy and, following the Celtic settlement of Eastern Europe beginning in 279 BC, as far east as central Anatolia in modern-day Turkey.
The earliest undisputed direct examples of a Celtic language are the Lepontic inscriptions beginning in the 6th century BC. Continental Celtic languages are attested exclusively through inscriptions and place-names. Insular Celtic languages are attested beginning around the 4th century in Ogham inscriptions, although they were being spoken much earlier. Celtic literary tradition begins with Old Irish texts around the 8th century CE. Coherent texts of Early Irish literature, such as the Táin Bó Cúailnge, survive in 12th-century recensions. By the mid-1st millennium, with the expansion of the Roman Empire and migrating Germanic tribes, Celtic culture and Insular Celtic languages had become restricted to Ireland, the western and northern parts of Great Britain, the Isle of Man, Brittany. Between the 5th and 8th centuries, the Celtic-speaking communities in these Atlantic regions emerged as a reasonably cohesive cultural entity, they had a common linguistic and artistic heritage that distinguished them from the culture of the surrounding polities.
By the 6th century, the Continental Celtic languages were no longer in wide use. Insular Celtic culture diversified into that of the Gaels and the Celtic Britons of the medieval and modern periods. A modern Celtic identity was constructed as part of the Romanticist Celtic Revival in Great Britain and other European territories, such as Portugal and Spanish Galicia. Today, Scottish Gaelic and Breton are still spoken in parts of their historical territories, Cornish and Manx are undergoing a revival; the first recorded use of the name of Celts – as Κελτοί – to refer to an ethnic group was by Hecataeus of Miletus, the Greek geographer, in 517 BC, when writing about a people living near Massilia. In the fifth century BC, Herodotus referred to Keltoi living around the head of the Danube and in the far west of Europe; the etymology of the term Keltoi is unclear. Possible roots include Indo-European *kʲel'to hide', IE *kʲel'to heat' or *kel'to impel'. Several authors have supposed it to be Celtic in origin, while others view it as a name coined by Greeks.
Linguist Patrizia De Bernardo Stempel falls in the latter group, suggests the meaning "the tall ones". In the 1st century BC, Julius Caesar reported that the people known to the Romans as Gauls called themselves Celts, which suggests that if the name Keltoi was bestowed by the Greeks, it had been adopted to some extent as a collective name by the tribes of Gaul; the geographer Strabo, writing about Gaul towards the end of the first century BC, refers to the "race, now called both Gallic and Galatic," though he uses the term Celtica as a synonym for Gaul, separated from Iberia by the Pyrenees. Yet he reports Celtic peoples in Iberia, uses the ethnic names Celtiberi and Celtici for peoples there, as distinct from Lusitani and Iberi. Pliny the Elder cited the use of Celtici in Lusitania as a tribal surname, which epigraphic findings have confirmed. Latin Gallus might stem from a Celtic ethnic or tribal name perhaps one borrowed into Latin during the Celtic expansions into Italy during the early fifth century BC.
Its root may be the Proto-Celtic *galno, meaning "power, strength", hence Old Irish gal "boldness, ferocity" and Welsh gallu "to be able, power". The tribal names of Gallaeci and the Greek Γαλάται most have the same origin; the suffix -atai might be an Ancient Greek inflection. Classical writers did not apply the terms Κελτοί or Celtae to the inhabitants of Britain or Ireland, which has led to some scholars preferring not to use the term for the Iron Age inhabitants of those islands. Celt is a modern English word, first attested in 1707, in the writing of Edward Lhuyd, whose work, along with that of other late 17th-century scholars, brought academic attention to the languages and history of the early Celtic inhabitants of Great Britain; the English form Gaul (first recorded in the 17th cent