About 450 million years ago, a meteor struck north-central Oklahoma, creating an impact crater - an astrobleme - more than eight miles wide. |
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A few years ago, the town enjoyed a nice boomlet, but since then times have been tough. |
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Astronomers believe the Earth began to accrete more than 4.6 billion years ago. |
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About 700 years ago this giant lake began to drain due to tectonic movement. |
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When I was an apprentice many years ago, the 125 used to come through Markinch station in Fife at 1.27pm every weekday. |
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The Sami are estimated to have adopted a Uralic language less than 2,500 years ago. |
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Teeth and part of a jawbone excavated in 1981 were dated to 225,000 years ago. |
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The retreat of the glaciers 15,000 years ago allowed groups of humans from Asia to migrate to the Americas. |
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Around 800 million years ago, there was a notable increase in the complexity and number of eukaryotes species in the fossil record. |
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Oceanic sulfide levels decreased around 800 million years ago, which supports the importance of oxygen in eukaryotic diversity. |
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The Ordovician meteor event is a proposed shower of meteors that occurred during the Middle Ordovician period, roughly 470 million years ago. |
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Arguably, they might be considered distinct species, with gene flow having ceased at least a million years ago, but probably more. |
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The European polecat is the sole ancestor of the ferret, which was domesticated more than 2000 years ago for the purpose of hunting vermin. |
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Cetaceans' closest living relatives are the hippopotamuses, having diverged about 40 million years ago. |
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Both the fossil record and analysis of mitochondrial DNA suggest the divergence occurred by 10 to 20 million years ago. |
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I have a patient now living, at an advanced age, who discharged blood from his lungs thirty years ago. |
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Sherds have been found in China and Japan from a period between 12,000 and perhaps as long as 18,000 years ago. |
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Georges Bank was part of the North American mainland as recently as 12,000 years ago. |
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The lower half of a duplex apartment on a shabby Montreal street, dark as limbo, jerry-built fifty years ago and going off keel ever since. |
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The ogopogo made no attempt to devour the sailboat crew, as he is reported to have done some years ago in the case of some Indians. |
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The land on which Pembrokeshire is today was established approximately 60 million years ago by a combination of uplift and falling sea levels. |
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Some paleontologists suggest that animals appeared much earlier, possibly as early as 1 billion years ago. |
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Most modern peat bogs formed 12,000 years ago in high latitudes after the glaciers retreated at the end of the last ice age. |
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The ophiuroids diverged in the Early Ordovician, about 500 million years ago. |
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Records of bird migration were made as much as 3,000 years ago by the Ancient Greek writers Hesiod, Homer, Herodotus and Aristotle. |
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The killer whale is one of 35 species in the oceanic dolphin family, which first appeared about 11 million years ago. |
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The evolutionary split between the two groups is believed to have begun two million years ago. |
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The first split in the orca population, between the North Pacific transients and the rest, occurred an estimated 700,000 years ago. |
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A volcanic winter is said to have taken place around 70,000 years ago after the supereruption of Lake Toba on Sumatra island in Indonesia. |
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Whales direct lineage began in the early Eocene, more than 50 million years ago, with early artiodactyls. |
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Mysticetes evolved baleen around 25 million years ago and lost their teeth. |
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Since the late Eocene, about 40 million years ago, cetaceans populated the subtropical oceans and no longer emerged on land. |
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Corsica was formed about 250 million years ago with the uplift of a granite backbone on the western side. |
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About 50 million years ago sedimentary rock was pressed against this granite, forming the schists of the eastern side. |
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The first recorded human presence in the southern area of the peninsula and Denmark dates from 12,000 years ago. |
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Numerous Acheulean flint tools and remains of animals dating to around 500,000 years ago were found at the site. |
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Modern humans first arrived in the Iberian Peninsula around 35,000 years ago. |
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Modern humans first arrived in Iberia, from the north on foot, about 35,000 years ago. |
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The first human settlement in Crete dates before 130,000 years ago, during the Paleolithic age. |
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The present continental slope in the Norwegian Sea marks the border between Norway and Greenland as it stood approximately 250 million years ago. |
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In contrast, the world's climate was cloudier and wetter than today near the start of the warm Atlantic Period of 8000 years ago. |
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Some of these isostatic movements triggered large earthquakes in Scandinavia about 9,000 years ago. |
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These mammals became extinct when the glacial period Age ended about 11,700 years ago. |
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Between 12,000 and 9000 years ago much of the Gulf floor would have remained exposed, only being flooded by the sea after 8,000 years ago. |
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The latest work indicates that deposits of three glacial episodes since 150,000 to 200,000 years ago are preserved on the volcano. |
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Glacial moraines on the volcano formed about 70,000 years ago and from about 40,000 to 13,000 years ago. |
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Plateosaurus thus lived probably from approximately 214 to 204 million years ago. |
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The first land plants probably evolved from shallow freshwater charophyte algae much like Chara almost 500 million years ago. |
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Fossils of isolated land plant spores suggest land plants may have been around as long as 475 million years ago. |
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Their evolution dates back to the Triassic some 245 to 208 million years ago. |
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We had stopped throwing stones in view of anyone except ourselves years ago, after we saw the looks on the adults' faces when we outskipped them. |
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At the end of the last ice age approximately 10,000 years ago, large proglacial lakes were a widespread feature in the northern hemisphere. |
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The marine incursion, caused by the rising level of the Mediterranean, apparently occurred around 7,600 years ago. |
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It reached its largest volume around 8,500 years ago, when joined with Lake Agassiz. |
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The Lake Toba event, approximately between 69,000 and 77,000 years ago, caused a massive drop in sea levels. |
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The subducting plates pulled Japan eastward, opening the Sea of Japan around 15 million years ago. |
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Results of research on the footprints were announced on 7 February 2014, and identified them as dating to more than 800,000 years ago. |
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The slabs preserved the impressions of leaves from oaks, elms, beeches, birches and willows that had lived thousands of years ago. |
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In 2000, a black flint handaxe, dating to between 600,000 and 800,000 years ago, was found by a man walking on the beach. |
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Brown bears entered Europe about 250,000 years ago, and North Africa shortly after. |
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The species entered Alaska 100,000 years ago, though they did not move south until 13,000 years ago. |
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They, like anyone else carrying haplogroup U5 today, share an ancestor with Cheddar Man of many thousands of years ago through his maternal line. |
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The ice was as thick as three kilometres during the last glacial maximum about 20,000 years ago. |
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The Alpine Orogeny began 200 million years ago and continues to the present day. |
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The shock wave began piling up the western ranges, and then the main ranges, around 120 million years ago. |
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By 20 million years ago, fossils recognizably belonging to the current families such as Muridae had emerged. |
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The first rodents arrived in Australia via Indonesia around 5 million years ago. |
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Cervus genus ancestors of red deer first appear in fossil records 12 million years ago during the Miocene in Eurasia. |
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Its range encompasses some of the most densely populated areas in the world, where forests were cleared hundreds of years ago. |
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They are believed to have become associated with humans around 10,000 years ago. |
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The oldest fossils tentatively assigned to this genus are from the Late Miocene, less than 10 million years ago. |
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The genus first appeared in the Miocene geological period about 20 million years ago, originating in what is now central Asia. |
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Genetic sequencing indicates orchids may have arisen earlier, 76 to 84 million years ago during the Late Cretaceous. |
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The symbiotic association between the Glomeromycota and plants is ancient, with evidence dating to 400 million years ago. |
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The mycorrhizal symbiosis is ancient, dating to at least 400 million years ago. |
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According to radiometric dating and other sources of evidence, Earth formed over 4 billion years ago. |
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Fifty years ago, the common perception was that water was an infinite resource. |
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The region's oldest known beads were made from Nassarius shells and worn as personal ornaments 72,000 years ago. |
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Humans first settled the Americas from Asia between 42,000 and 17,000 years ago. |
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Habitation sites are known in Alaska and the Yukon from at least 20,000 years ago, with suggested ages of up to 40,000 years. |
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Widespread habitation of the Americas occurred during the late glacial maximum, from 16,000 to 13,000 years ago. |
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Evidence of the first human habitation of the area by Neanderthals dates back to 125,000 years ago. |
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It assembled from earlier continental units approximately 335 million years ago, and it began to break apart about 175 million years ago. |
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Around 16,500 years ago, the glaciers began melting, allowing people to move south and east into Canada and beyond. |
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Natives of North America began practicing farming approximately 4,000 years ago, late in the Archaic period of North American cultures. |
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The Gulf of Mexico formed approximately 300 million years ago as a result of plate tectonics. |
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The ridge is central to the breakup of the hypothetical supercontinent of Pangaea that began some 180 million years ago. |
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Formed millions of years ago by volcanism, they have since subsided far below sea level. |
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It is believed that rising sea levels submerged these around 8,000 years ago. |
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A brief complete reversal, known as the Laschamp event, occurred only 41,000 years ago during the last glacial period. |
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With the formation of the Isthmus of Panama 3 million years ago, it ultimately lost its connection to the Pacific. |
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It also allows for extended periods of social learning and language acquisition in juvenile humans which may have begun 2 million years ago. |
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Fossils at 20 million years ago include fragments attributed to Victoriapithecus, the earliest Old World monkey. |
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The youngest of the Miocene hominoids, Oreopithecus, is from coal beds in Italy that have been dated to 9 million years ago. |
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Some authors have pushed back the appearance of fully modern behavior to around 80,000 years ago in order to incorporate the South African data. |
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Unlike Europe, where initial migration occurred around 50,000 years ago, human remains have been dated in China to around 100,000 years ago. |
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Fossils from Lake Mungo, Australia, have been dated to about 42,000 years ago. |
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Other fossils from a site called Madjedbebe have been dated to at least 65,000 years ago. |
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Tianyuan is similar in morphology to Minatogawa Man, modern humans dated between 17,000 and 19,000 years ago and found on Okinawa Island, Japan. |
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Anatomically modern humans originated in Africa by about 200,000 years ago. |
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Chinese researchers question this extinction, claiming that modern humans were present in China already 80,000 years ago. |
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The area around Lake Malawi, today heavily forested, was a desert approximately 135,000 to 90,000 years ago. |
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By some 70,000 years ago, a part of the bearers of mitochondrial haplogroup L3 migrated from East Africa into the Near East. |
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This southern coastal dispersion would have occurred before the dispersion through the Levant approximately 45,000 years ago. |
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Beads made of perforated ostrich egg shells found at the site have been dated to 40,000 years ago. |
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The Bering land bridge is a postulated route of human migration to the Americas from Asia about 20,000 years ago. |
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Fossils in China demonstrate a migration of Asian mammals into North America around 55 million years ago. |
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By 20 million years ago, evidence in North America shows a further interchange of mammalian species. |
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Archaeologists' most precise determinations at present suggest that this radiocarbon age is equal to roughly 13,200 to 12,900 calendar years ago. |
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Remains found at the Channel Islands of California place coastal Paleoindians there 12,500 years ago. |
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In 2004, worked stone tools were found at Topper in South Carolina that have been dated by radiocarbon techniques possibly to 50,000 years ago. |
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Two uncalibrated radiocarbon dates on carbon from the hearths came in at approximately 24,000 and 22,000 years ago. |
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By examining other bottlenecks all Eurasian men are descended from a man who lived 69,000 years ago. |
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The site of origin is unknown but likely in either Asia or Africa approximately 88,000 years ago. |
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It is believed to have arisen in Central Asia approximately 32,000 years ago. |
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The Solutrean toolmaking industry disappeared from Europe around 17,000 years ago, replaced by the lithic technology of the Magdalenian culture. |
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Clovis toolmaking technology appears in the archaeological record in much of North America between 12,800 and 13,500 years ago. |
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Geologically speaking, Cape Cod is quite young, having been laid down some 16,000 to 20,000 years ago. |
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Oysters first arrived in the Chesapeake 5,000 years ago, and shortly after, local Indians began eating them. |
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Testudines were suggested to have diverged from other diapsids between 200 and 279 million years ago, though the debate is far from settled. |
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Less direct geological evidence indicates that CO2 values higher than this were last seen about 20 million years ago. |
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They began to exhibit evidence of behavioral modernity around 50,000 years ago. |
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Around ten thousand years ago, humans developed agriculture, which substantially altered their diet. |
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About 700,000 years ago, a new Lower Paleolithic tool, the hand ax, appeared. |
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Most scholars date the arrival of humans in Australia at 40,000 to 50,000 years ago, with a possible range of up to 125,000 years ago. |
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Cattle were domesticated from the wild aurochs in the areas of modern Turkey and Pakistan some 10,500 years ago. |
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Kites were used approximately 2,800 years ago in China, where materials ideal for kite building were readily available. |
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Then, eight years ago, when I was 24, I had my pelvis sawn in three and pinned back together again with four long metal rods. |
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There is evidence suggesting that Paleolithic societies were gathering wild cereals for food use at least as early as 30,000 years ago. |
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Ninety million years ago what is now the chalk downland of Northern Europe was ooze accumulating at the bottom of a great sea. |
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At the time the fossils were laid down, between 125 and 110 million years ago, the island was at a latitude similar to that of North Africa. |
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A former river valley flooded by rising sea levels 6,000 years ago, Poole Harbour is one of the largest natural harbours in the world. |
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The downlands of Ballard Down are formed of chalk with some bands of flint, and were formed approximately 66 million years ago. |
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These are also part of the same chalk band and only a few thousand years ago were connected to Ballard Down. |
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They separated from other crocodilians during the Eocene epoch, about 55 million years ago. |
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One of the earliest known monotremes was Teinolophos, which lived about 120 million years ago in Australia. |
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For example, the earliest known bat dates from about 50 million years ago, only 16 million years after the extinction of the dinosaurs. |
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The earliest known ancestor of primates is Archicebus achilles from around 55 million years ago. |
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The current Holocene interglacial began at the end of the Pleistocene, about 11,700 years ago. |
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I have the greatest respect for you, George, but Lord, you're no nearer catching me now than four years ago when I started. |
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About 25 million years ago, a shift in plate tectonic movements began to contort and crumple the region. |
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Rice was domesticated in China between 13,500 and 8,200 years ago, followed by mung, soy and azuki beans. |
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Sheep were domesticated in Mesopotamia between 13,000 and 11,000 years ago. |
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Sugarcane and some root vegetables were domesticated in New Guinea around 9,000 years ago. |
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Cotton was domesticated in Peru by 5,600 years ago, and was independently domesticated in Eurasia at an unknown time. |
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In Mesoamerica, wild teosinte was domesticated to maize by 6,000 years ago. |
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The quality of the fossil record greatly increases from 130,000 years ago onwards. |
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They are believed to have been a group killed and butchered about 50,000 years ago. |
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From mtDNA analysis estimates, the two shared a common ancestor about 500,000 years ago. |
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A 2007 study pushes the point of divergence back to around 800,000 years ago. |
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They calculated that the mating must have taken place about 100,000 years ago. |
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About 55,000 years ago, the climate began to fluctuate wildly from extreme cold conditions to mild cold and back in a matter of decades. |
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Neanderthals died out in Europe between 41,000 and 39,000 years ago, apparently coinciding with the start of a very cold period. |
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The Venus figurine known as the Venus of Hohle Fels, dates to some 40,000 years ago. |
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The oldest African petroglyphs are dated to approximately the Mesolithic and late Upper Paleolithic boundary, about 10,000 to 12,000 years ago. |
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Around 7,000 to 9,000 years ago, other precursors of writing systems, such as pictographs and ideograms, began to appear. |
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Fishing is an ancient practice that dates back to at least the beginning of the Upper Paleolithic period about 40,000 years ago. |
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South African art includes the oldest art objects in the world, which were discovered in a South African cave, and dated from 75,000 years ago. |
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More advanced tools, such as the bow and arrow began to be developed approximately 10000 years ago. |
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Tens of thousands of years ago, waves of people migrated from eastern Siberia across the Bering Strait into North America to settle. |
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These visits influenced him into believing the shift from Neanderthal to modern humans 40,000 to 35,000 years ago was sudden rather than gradual. |
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Similar remains, of those that reached the European Russian Arctic 40,000 years ago, have also been found. |
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As the earliest known harpoons, these weapons were made and used 90,000 years ago, most likely to spear catfishes. |
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The use of oil lamps began thousands of years ago and continues to this day, although not commonly anymore. |
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A point that might be from a bone needle dates to 61,000 years ago and was discovered in Sibudu Cave, South Africa. |
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Ivory needles were also found dated to 30,000 years ago at the Kostenki site in Russia. |
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People lived on the edge of the desert thousands of years ago since the end of the last glacial period. |
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Dates given recently are usually earlier than those given more than 10 years ago. |
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An advance began after the Last Glacial Maximum, which brought the Adriatic to a high point at about 5,500 years ago. |
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During that period, some 240 million years ago, the area was a shallow tropical lagoon. |
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Until recently, the X and Y chromosomes were thought to have diverged around 300 million years ago. |
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This culture is thought to have been present between 6,500 and 7,500 years ago. |
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The other two races arose by survivors' escaping in different directions after a major catastrophe hit the earth 5,000 years ago. |
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The history of the Arabian Peninsula goes back to the beginnings of human habitation in Arabia up to 130,000 years ago. |
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There is evidence that human habitation in the Arabian Peninsula dates back to about 106,000 to 130,000 years ago. |
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According to molecular data, the New World and Old World camelids diverged 11 million years ago. |
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By 35 million years ago, the Poebrotherium was the size of a goat and had many more traits similar to camels and llamas. |
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As human population density rose on the island, deforestation accelerated beginning around 1400 years ago. |
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Ancient Sumerian men and women were possibly the first to invent and wear lipstick, about 5,000 years ago. |
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The Persian Gulf is geologically very young, having been formed around 15,000 years ago. |
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This water channel which separates the Iran Plateau from the Arabia Plate, has enjoyed an Iranian Identity since at least 2200 years ago. |
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They might have split 24 years ago, but the Smiths remain as popular as ever, and not just among those who remember them first time around. |
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The southern branch of these people was established on the north peninsula of Newfoundland by 5,000 years ago. |
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Further research has hypothesised that this practice began around 11,000 years ago. |
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Fifteen million years ago, the main tectonic uplift phase of the Andean chain started. |
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The island of Mauritius is relatively young geologically, having been created by volcanic activity some 8 million years ago. |
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The first documented human presence in the Banda Islands comes from a rockshelter site on Pulau Ay that was in use at least 8000 years ago. |
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Most of the residents are Marshallese, who are of Micronesian origin and migrated from Asia several thousand years ago. |
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It most likely evolved from a terrestrial African rodent virus between 68,000 and 16,000 years ago. |
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How does it work, though? It's based on the observation made some 200 years ago that electricity can change the shape of flames. |
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He committed acts which put him afoul of Empire law, details classified, twenty-six years ago. |
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Many thousands of years ago, an Africoon was loafing in the dust in front of his hut when he felt the need for a snack. |
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Even three years ago, the thought of spending two hours, let alone a whole day, without my mobile would have been anathema. |
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Guerin Woodgate Jr., 29, says he never thought much about his circumcision until he stumbled upon some anti-circ Web sites about ten years ago. |
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He said increased baitfish numbers after an upwelling of nutrient-rich water three years ago had contributed to the increase in shark numbers. |
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The tax officials seized documents that Tony Hachem said related to a company for which he'd done unpaid bookwork about five years ago. |
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Thirty years ago this ford was on the track of the bunjaras, and I have seen two thousand pack-bullcoks cross in one night. |
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I remember, about five years ago, I was greatly annoyed by a ghost, while doing a job of fencing in the bush between here and Perth. |
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Many years ago, a Mr. Torbit brought forward a Ceresian scheme for producing a disease-proof potato. |
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I wanted an ancient shark tooth, a chomper that last saw use by a predator perhaps 25 million years ago. |
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This has been known for centuries, but it was only twenty years ago that the site of the biological clock was identified. |
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In one, dated eighteen years ago, he appeared, wearing only sandals and a cincture of vine leaves, between two classical garden statues. |
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My attention was called to this many years ago, very shortly after the introduction of cocain as a local anesthetic. |
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Millions of years ago the mica schists surrounding the old Brandberg West Mine became folded and concertinaed by enormous horizontal pressures. |
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The rest of it is very good and I wish I had had something of the sort available when I started congoing thirty years ago... ulp. |
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Forty years ago one who had known it well described it to me as a crincum-crancum kind of house, full of ins and outs. |
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Father Juliano declared bankruptcy after building only the prototype, but the car was restored a few years ago by a customizer in England. |
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Photosynthesis was established some billion years ago by ancient bacterial precursors of modern cyanobacteria. |
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A deva prasnam conducted in July 1975 revealed that the image had been consecrated by a saint from Tirupati more than one thousand years ago. |
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Richard obtained a divorce from his wife some years ago, but hasn't returned to the dating scene. |
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The blue men of Mica II discriminated against Earthies, considered them inferior since the Micans had conquered the Earthies a hundred years ago. |
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With this once long lance, now wildly elbowed, fifty years ago did Nathan Swain kill fifteen whales between a sunrise and a sunset. |
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Ten years ago, Frank Buono, a retired employee of the National Park Service, objected to the cross, saying it violated the establishment clause. |
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I am a huge Fanilow and had the good fortune of meeting and spending a little time with Barry a few years ago. |
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Like, twenty years ago everyone was fat and happy. The Cold War was over, everyone was at peace, the U.S. was cruising along with a big surplus. |
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Fivescore years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. |
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Reggie woke her from a frightless slumber years ago with a tarantula in a shoebox, disappointed when it didn't make her scream. |
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Forty years ago the crumpled and complex Mobile Belt of Newfoundland would have been considered a typical result of a deformed geosyncline. |
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The small Himalayan kingdom of Bhutan introduced a policy of Gross National Happiness more than twenty years ago. |
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Mr. Guirl is a native of Indiana, and his partner, Mr. H. A. Daggett, who was born in Maine, joined him at Clay City about six years ago. |
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That was many years ago, twenty years or more, and during this time Okonkwo's fame had grown like a bush-fire in the harmattan. |
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Settlement by anatomically modern humans of what was to become the United Kingdom occurred in waves beginning by about 30,000 years ago. |
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The end of the last glacial period was about 11,700 years ago, while the end of the last ice age has not yet come. |
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As the ice retreated 10,000 years ago the lake reconnected to the sea, becoming brackish and then fully saline once again. |
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During the Late Cretaceous, about 85 million years ago, all of modern mainland Europe except for Scandinavia was a scattering of islands. |
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Analysis indicated that it was a Plateosaurus from 199 to 216 million years ago. |
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The island probably became separated from the mainland about 125,000 years ago, during the Ipswichian interglacial. |
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About 50,000 years ago, there was a marked increase in the diversity of artifacts. |
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Between 45,000 and 43,000 years ago, this new tool technology spread with human migration to Europe. |
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He argues that almost everywhere, whether Asia, Africa or Europe, before 50,000 years ago all the stone tools are much alike and unsophisticated. |
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The town's most famous bridge, though, is the Transporter Bridge, built over 100 years ago. |
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After all, if these measures could've succeeded, they would've been implemented five years ago when the world economy hadn't yet hit the skids. |
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During the last glacial period, and up until about 9000 years ago, most of Ireland was covered with ice, most of the time. |
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The Last Glacial Maximum, the maximum extent of glaciation within the last glacial period, was approximately 22,000 years ago. |
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Around 11,700 years ago marked the beginning of the Holocene geological epoch, which includes the Holocene glacial retreat. |
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The Pinedale lasted from approximately 30,000 to 10,000 years ago and was at its greatest extent between 23,500 and 21,000 years ago. |
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It began about 30,000 years ago, reached its greatest advance 21,000 years ago, and ended about 10,000 years ago. |
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These mammoths lived in northern Africa and disappeared about 3 or 4 million years ago. |
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The earliest known proboscideans, the clade that contains the elephants, existed about 55 million years ago around the Tethys Sea area. |
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The family Elephantidae is known to have existed six million years ago in Africa, and includes the living elephants and the mammoths. |
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Recent research of sediments in Alaska indicates mammoths survived on the American mainland until 10,000 years ago. |
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Their predecessor, the steppe bison appeared in the North American fossil record around 190,000 years ago. |
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The genetic information also indicated that a second, Pleistocene migration of bison over the land bridge occurred 21,000 to 45,000 years ago. |
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About 40,000 years ago, anatomically modern humans entered the Iberian Peninsula from Southern France. |
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In the Old World, humans learned to smelt metals in prehistoric times, more than 8000 years ago. |
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As we have seen, even a hundred years ago icestorms could have a devastating effect on electric service in a major metropolitan area. |
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However, until the Destruction of the Second Temple, about two thousand years ago, taking Nazirite vows was a common feature of the religion. |
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Danny had christened himself the Italian Stallion years ago in reference to his family's Italian heritage and the name had stuck. |
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She was certain she was about to kick up dust about her mother just as Setsuka had done about Mitsu's death eighteen years ago. |
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From 14,000 to 10,000 years ago, as the ice melted, sea levels rose separating Ireland from Great Britain and also creating the Isle of Man. |
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The Indian subcontinent drifted northeastwards, colliding with the Eurasian plate nearly 55 million years ago, towards the end of Paleocene. |
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The Gulf of Mexico did not exist 250 million years ago when there was but one supercontinent, Pangea. |
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The oldest rocks date back to the early Tertiary Era, some 60 million years ago. |
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The Ordovician spanned from approximately 488 million years to approximately 443 million years ago. |
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The Permian spanned from 299 to 252 million years ago and was the last period of the Paleozoic Era. |
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The bones in their fins eventually evolved into legs and they became the first tetrapods, 390 million years ago, and began to develop lungs. |
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At the end of the last glaciation, about 10,000 years ago, the area's ecosystem was characterised by a largely treeless tundra. |
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Woodland was far more extensive on the North Downs prior to human clearance 4000 to 5000 years ago. |
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This took place between about 478,000 to 424,000 years ago, and was responsible for the diversion of the River Thames onto its present course. |
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During the most recent Devensian glaciation, which ended a mere 10,000 years ago, the icesheet reached south to Wolverhampton and Cardiff. |
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And since this happened years ago, I'll go ahead and fill you in that nothing else lesbiany happened on the show. |
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One hundred years ago, to have lit this theatre as brilliantly as it is now lighted would have cost, I suppose, fifty pounds. |
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He probably got his death, as he liked to have done two years ago, by viewing the troops for the expedition from the wall of Kensington Garden. |
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About 500 million years ago, plants and fungi colonised the land and were soon followed by arthropods and other animals. |
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Haplogroup R originated 26,800 years ago in Central Asia during the Last Ice Age. |
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The first palaces in Russia were built about a thousand years ago for the Grand Dukes of Kiev. |
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Two years ago we were going to Mars, and that sort of didn't happen...and now there's, like, manimal. |
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We have just changed horses at Birmingham where I was two years ago and we visited the manufactories which are very curious. |
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The earliest paintings on the cave walls are believed to be of the Mesolithic period, dating to 30,000 years ago. |
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The cliffs in the ravine contain several caves that were occupied during the last ice age, between around 43,000 and 10,000 years ago. |
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Many years ago there was a rumor that a basketball star had memorized the entire Manhattan phone book. |
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They have won 7 Championships and 6 Challenge Cups, but have not won a major trophy since 1962, some 53 years ago. |
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Some years ago there was a demand from Irish quarters that the blue ground of the golden harp on the royal standard should be changed to green. |
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Migration from the Black Sea area into Europe started some 45,000 years ago, probably along the Danubian corridor. |
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These early humans used manganese and iron oxides to paint pictures and may have created one early lunar calendar around 15,000 years ago. |
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These Happisburgh footprints were dated to at least 800,000 years ago, the early Pleistocene. |
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The discovery of the Mauer 1 mandible shows that ancient humans were present in Germany at least 600,000 years ago. |
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The earliest authenticated human remains in South Asia date to about 30,000 years ago. |
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Epochal volcanism and climatic changes 20 million years ago forced a mass extinction. |
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England has many prominent private schools, often founded hundreds of years ago, which are known as public schools or independent schools. |
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Despite having signed the protocol more than twenty years ago, Germany, the Netherlands and Turkey have never ratified it. |
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Tens of millions of homeowners who had substantial equity in their homes two years ago have little or nothing today. |
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The oldest rocks of Scotland are the Lewisian gneisses, which were formed in the Precambrian period, up to 3 billion years ago. |
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Ben Nevis is all that remains of a Devonian volcano that met a cataclysmic end in the Carboniferous period around 350 million years ago. |
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Ireland was formed in two distinct parts and slowly joined together, uniting about 440 million years ago. |
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It tells the story of a mother who brings her teenage son to Sarajevo, where his father died in the Bosnian conflict years ago. |
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These individuals lived between 3,500 and 5,500 years ago, after the transition to farming in southwest Europe. |
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These are amongst the oldest rocks in Europe, having been formed in the Precambrian period up to three billion years ago. |
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Europe's present shape dates to the late Tertiary period about five million years ago. |
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A more intricate triadic relationship was advanced 15 years ago in a multitherapist project headed by Bieber. |
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Burton's progress as an actor is such that already he is able to make good all the lacks of a few short years ago. |
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It's a version of events that 23 years ago The Sun went along with and for that we're deeply ashamed and profoundly sorry. |
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Discovery stated 'enough is enough' and claimed that Sky is paying less for its channels than it was ten years ago. |
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There is evidence that human habitation in the Arabian Peninsula dates back to about 125,000 years ago. |
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Fossils found in Kenya suggest that primates roamed the area more than 20 million years ago. |
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The location has been inhabited by humans since the Neolithic era, about 5,000 years ago, attracted to its warm mineral springs. |
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The eruption of the Toba supervolcano, approximately 70,000 years ago, was one of the largest eruptions ever, and a global catastrophe. |
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The earth is currently in an interglacial, and the last glacial period ended about 10,000 years ago. |
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Just 370,000 years ago, the planet would have appeared more white than red. |
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Although the last glacial period ended more than 8,000 years ago, its effects can still be felt today. |
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