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The Geography Portal

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Physical map of Earth with political borders as of 2016

Geography (from Greek: γεωγραφία, geographia, literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of the Earth and planets. The first person to use the word γεωγραφία was Eratosthenes (276–194 BC). Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be.

Geography is often defined in terms of two branches: human geography and physical geography. Human geography is concerned with the study of people and their communities, cultures, economies, and interactions with the environment by studying their relations with and across space and place. Physical geography is concerned with the study of processes and patterns in the natural environment like the atmosphere, hydrosphere, biosphere, and geosphere.

The four historical traditions in geographical research are spatial analyses of natural and the human phenomena, area studies of places and regions, studies of human-land relationships, and the Earth sciences. Geography has been called "the world discipline" and "the bridge between the human and the physical sciences". (Full article...)

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Featured article

Featured articles in geography

Zion National Park is an American national park located in southwestern Utah near the town of Springdale. A prominent feature of the 229-square-mile (590 km²) park is Zion Canyon, which is 15 miles (24 km) long and up to 2,640 ft (800 m) deep. The canyon walls are reddish and tan-colored Navajo Sandstone eroded by the North Fork of the Virgin River. The lowest point in the park is 3,666 ft (1,117 m) at Coalpits Wash and the highest peak is 8,726 ft (2,660 m) at Horse Ranch Mountain. Located at the junction of the Colorado Plateau, Great Basin, and Mojave Desert regions, the park has a unique geography and a variety of life zones that allow for unusual plant and animal diversity. Numerous plant species as well as 289 species of birds, 75 mammals (including 19 species of bat), and 32 reptiles inhabit the park's four life zones: desert, riparian, woodland, and coniferous forest. Zion National Park includes mountains, canyons, buttes, mesas, monoliths, rivers, slot canyons, and natural arches.

Human habitation of the area started about 8,000 years ago with small family groups of Native Americans, one of which was the semi-nomadic Basketmaker Anasazi (c. 300 CE). Subsequently, the Virgin Anasazi culture (c. 500) and the Parowan Fremont group developed as the Basketmakers settled in permanent communities. Both groups moved away by 1300 and were replaced by the Parrusits and several other Southern Paiute subtribes. Mormons came into the area in 1858 and settled there in the early 1860s. In 1909, President William Howard Taft named the area Mukuntuweap National Monument in order to protect the canyon. In 1918, the acting director of the newly created National Park Service, Horace Albright, drafted a proposal to enlarge the existing monument and change the park's name to Zion National Monument, Zion being a term used by the Mormons. According to historian Hal Rothman: "The name change played to a prevalent bias of the time. Many believed that Spanish and Indian names would deter visitors who, if they could not pronounce the name of a place, might not bother to visit it. The new name, Zion, had greater appeal to an ethnocentric audience." On November 19, 1919, Congress redesignated the monument as Zion National Park, and the act was signed by President Woodrow Wilson. The Kolob section was proclaimed a separate Zion National Monument in 1937, but was incorporated into the national park in 1956. (Full article...)
Southern right whale breaching

Right whales or black whales are three species of large baleen whales of the genus Eubalaena: the North Atlantic right whale (E. glacialis), the North Pacific right whale (E. japonica) and the Southern right whale (E. australis). They are classified in the family Balaenidae with the bowhead whale. Right whales have rotund bodies with arching rostrums, V-shaped blowholes and dark gray or black skin. The most distinguishing feature of a right whale is the rough patches of skin on its head, which appear white due to parasitism by whale lice. Right whales can grow up to more than 18 m (59 ft) long with a highest-recorded length of 19.8 m (65 ft). Right whales are very robust whales, weighing 100 short tons (91 t; 89 long tons) or more. The largest known right whales can attain 20.7 m (68 ft) in length and weigh up to 135,000 kg (298,000 lb) or 21.3 m (70 ft) with uncertainty, Their immense bulk makes right whales significantly heavier than other whales of similar or greater length such as the humpback, gray, sperm and even fin whales. In fact, right whales rank only behind the blue whale in sheer body mass. One (apocryphal) explanation for their name is that whalers identified them as the "right" whale to kill on a hunt due to the plentiful oil and baleen they could provide.

All three species are migratory, moving seasonally to feed or give birth. The warm equatorial waters form a barrier that isolates the northern and southern species from one another although the southern species, at least, has been known to cross the equator. In the Northern Hemisphere, right whales tend to avoid open waters and stay close to peninsulas and bays and on continental shelves, as these areas offer greater shelter and an abundance of their preferred foods. In the Southern Hemisphere, right whales feed far offshore in summer, but a large portion of the population occur in near-shore waters in winter. Right whales feed mainly on copepods but also consume krill and pteropods. They may forage the surface, underwater or even the ocean bottom. During courtship, males gather into large groups to compete for a single female, suggesting that sperm competition is an important factor in mating behavior. Although the blue whale is the largest animal on the planet, the testes of the right whale are actually ten times larger than those of the blue whale – with each weighing up to 525 kilograms (1,160 lb), they are by far the largest of any animal on Earth. Gestation tends to last a year, and calves are born at 1 short ton (0.91 t; 0.89 long tons) in weight and 4–6 m (13–20 ft) in length. Weaning occurs after eight months. (Full article...)
The Thing is a 1982 American science fiction horror film directed by John Carpenter and written by Bill Lancaster. Based on the 1938 John W. Campbell Jr. novella Who Goes There?, it tells the story of a group of American researchers in Antarctica who encounter the eponymous "Thing", a parasitic extraterrestrial life-form that assimilates, then imitates other organisms. The group is overcome by paranoia and conflict as they learn that they can no longer trust each other and that any one of them could be the Thing. The film stars Kurt Russell as the team's helicopter pilot, R.J. MacReady, and features A. Wilford Brimley, T. K. Carter, David Clennon, Keith David, Richard Dysart, Charles Hallahan, Peter Maloney, Richard Masur, Donald Moffat, Joel Polis, and Thomas G. Waites in supporting roles.

Production began in the mid-1970s as a faithful adaptation of the novella, following 1951's The Thing from Another World. The Thing went through several directors and writers, each with different ideas on how to approach the story. Filming lasted roughly 12 weeks, beginning in August 1981, and took place on refrigerated sets in Los Angeles as well as in Juneau, Alaska, and Stewart, British Columbia. Of the film's $15 million budget, $1.5 million was spent on Rob Bottin's creature effects, a mixture of chemicals, food products, rubber, and mechanical parts turned by his large team into an alien capable of taking on any form. (Full article...)
The church at Waltham Abbey, where Hugh de Neville was buried

Hugh de Neville (died 1234) was the Chief Forester under the kings Richard I, John and Henry III of England; he was the sheriff for a number of counties. Related to a number of other royal officials as well as a bishop, Neville was a member of Prince Richard's household. After Richard became king in 1189, Neville continued in his service and accompanied him on the Third Crusade. Neville remained in the royal service following Richard's death in 1199 and the accession of King John to the throne, becoming one of the new king's favourites and often gambling with him. He was named in Magna Carta as one of John's principal advisers, and considered by a medieval chronicler to be one of King John's "evil counsellors". He deserted John after the French invasion of England in 1216 but returned to pledge his loyalty to John's son Henry III after the latter's accession to the throne later that year. Neville's royal service continued until his death in 1234, though by then he was a less significant figure than he had been at the height of his powers. (Full article...)
Stretford is a historic market town in Trafford, Greater Manchester, England, on flat ground between the River Mersey and the Manchester Ship Canal, 3.8 miles (6.1 km) southwest of Manchester city centre, 3.0 miles (4.8 km) south of Salford and 4.2 miles (6.8 km) northeast of Altrincham. Stretford borders Chorlton-cum-Hardy to the east, Urmston to the west, Salford to the north, and Sale to the south. The Bridgewater Canal bisects the town.

Within the boundaries of the historic county of Lancashire, in the 19th century Stretford was an agricultural village, known locally as Porkhampton due to the large number of pigs produced for the Manchester market. It was also an extensive market-gardening area, producing more than 500 long tons (508 t) of vegetables each week for sale in Manchester by 1845. The arrival of the Manchester Ship Canal in 1894, and the subsequent development of the Trafford Park industrial estate, accelerated the industrialisation that had begun in the late 19th century. By 2001 less than one per cent of Stretford's population was employed in agriculture. (Full article...)
William Speirs Bruce (1 August 1867 – 28 October 1921) was a British naturalist, polar scientist and oceanographer who organized and led the Scottish National Antarctic Expedition (SNAE, 1902–04) to the South Orkney Islands and the Weddell Sea. Among other achievements, the expedition established the first permanent weather station in Antarctica. Bruce later founded the Scottish Oceanographical Laboratory in Edinburgh, but his plans for a transcontinental Antarctic march via the South Pole were abandoned because of lack of public and financial support.

In 1892 Bruce gave up his medical studies at the University of Edinburgh and joined the Dundee Whaling Expedition to Antarctica as a scientific assistant. This was followed by Arctic voyages to Novaya Zemlya, Spitsbergen and Franz Josef Land. In 1899 Bruce, by then Britain's most experienced polar scientist, applied for a post on Robert Falcon Scott's Discovery Expedition, but delays over this appointment and clashes with Royal Geographical Society (RGS) president Sir Clements Markham led him instead to organise his own expedition, and earned him the permanent enmity of the geographical establishment in London. Although Bruce received various awards for his polar work, including an honorary doctorate from the University of Aberdeen, neither he nor any of his SNAE colleagues were recommended by the RGS for the prestigious Polar Medal. (Full article...)
The Redwood National and State Parks (RNSP) are a complex of several state and national parks located in the United States, along the coast of northern California. Comprising Redwood National Park (established 1968) and California's Del Norte Coast, Jedediah Smith, and Prairie Creek Redwoods State Parks (dating from the 1920s), the combined RNSP contain 139,000 acres (560 km²), and feature old-growth temperate rainforests. Located within Del Norte and Humboldt Counties, the four parks, together, protect 45% of all remaining coast redwood (Sequoia sempervirens) old-growth forests, totaling at least 38,982 acres (157.75 km²). These trees are the tallest, among the oldest, and one of the most massive tree species on Earth. In addition to the redwood forests, the parks preserve other indigenous flora, fauna, grassland prairie, cultural resources, portions of rivers and other streams, and 37 miles (60 km) of pristine coastline.

In 1850, old-growth redwood forest covered more than 2,000,000 acres (8,100 km²) of the California coast. The northern portion of that area, originally inhabited by Native Americans, attracted many lumbermen and others turned gold miners when a minor gold rush brought them to the region. Failing in efforts to strike it rich in gold, these men turned toward harvesting the giant trees for booming development in San Francisco and other places on the West Coast. After many decades of unrestricted clear-cut logging, serious efforts toward conservation began. By the 1920s the work of the Save the Redwoods League, founded in 1918 to preserve remaining old-growth redwoods, resulted in the establishment of Prairie Creek, Del Norte Coast, and Jedediah Smith Redwoods State Parks among others. Redwood National Park was created in 1968, by which time nearly 90% of the original redwood trees had been logged. The National Park Service (NPS) and the California Department of Parks and Recreation (CDPR) administratively combined Redwood National Park with the three abutting Redwood State Parks in 1994 for the purpose of cooperative forest management and stabilization of forests and watersheds as a single unit. (Full article...)
Nauru (/nɑːˈuːruː/ nah-OO-roo or /ˈnaʊruː/ NOW-roo; Nauruan: Naoero), officially the Republic of Nauru (Nauruan: Repubrikin Naoero) and formerly known as Pleasant Island, is an island country and microstate in Oceania, in the Central Pacific. Its nearest neighbour is Banaba Island in Kiribati, 300 km (190 mi) to the east. It further lies northwest of Tuvalu, 1,300 km (810 mi) northeast of the Solomon Islands, east-northeast of Papua New Guinea, southeast of the Federated States of Micronesia and south of the Marshall Islands. With only a 21 km² (8.1 sq mi) area, Nauru is the third-smallest country in the world behind Vatican City and Monaco, making it the smallest republic. Additionally, its population of 10,670 is the world's second smallest, after Vatican City.

Settled by people from Micronesia and Polynesia c. 1000 BC, Nauru was annexed and claimed as a colony by the German Empire in the late 19th century. After World War I, Nauru became a League of Nations mandate administered by Australia, New Zealand, and the United Kingdom. During World War II, Nauru was occupied by Japanese troops, and was bypassed by the Allied advance across the Pacific. After the war ended, the country entered into United Nations trusteeship. Nauru gained its independence in 1968, and became a member of the Pacific Community (SPC) in 1969. (Full article...)
Route from Cape Denison across the Mertz and Ninnis Glaciers, 10 November 1912 – 8 February 1913 (1912-11-10 – 1913-02-08) (2 months and 29 days)
  Mawson, Mertz and Ninnis' outward progress until 14 December 1912
  Mawson and Mertz's return progress until 8 January 1913
  Mawson's return progress until 8 February 1913

The Far Eastern Party was a sledging component of the 1911–1914 Australasian Antarctic expedition, which investigated the previously unexplored coastal regions of Antarctica west of Cape Adare. Led by Douglas Mawson, the party aimed to explore the area far to the east of their main base in Adélie Land, pushing about 500 miles (800 km) towards Victoria Land. Accompanying Mawson were Belgrave Edward Ninnis, a lieutenant in the Royal Fusiliers, and Swiss ski expert Xavier Mertz; the party used sledge dogs to increase their speed across the ice. Initially they made good progress, crossing two huge glaciers on their route south-east.

On 14 December 1912, with the party more than 311 miles (501 km) from the safety of the main base at Cape Denison, Ninnis and the sledge he was walking beside broke through the snow lid of a crevasse and were lost. Their supplies now severely compromised, Mawson and Mertz turned back west, gradually shooting the remaining sledge dogs for food to supplement their scarce rations. As they crossed the first glacier on their return journey Mertz became sick, making progress difficult. After almost a week of making very little headway Mertz died, leaving Mawson to carry on alone. (Full article...)
SY Aurora, anchored to the Antarctic ice

The drift of the Antarctic exploration vessel SY Aurora was an ordeal which lasted 312 days, affecting the Ross Sea party of Sir Ernest Shackleton's Imperial Trans-Antarctic Expedition, 1914–17. It began when the ship broke loose from its anchorage in McMurdo Sound in May 1915, during a gale. Caught in heavy pack ice and unable to manoeuvre, Aurora, with eighteen men aboard, was carried into the open waters of the Ross Sea and Southern Ocean, leaving ten men stranded ashore with meagre provisions.

Aurora, a 40-year-old former Arctic whaler registered as a steam yacht, had brought the Ross Sea party to Cape Evans in McMurdo Sound in January 1915, to establish its base there in support of Shackleton's proposed transcontinental crossing. When Aurora's captain Aeneas Mackintosh took charge of activities ashore, first officer Joseph Stenhouse assumed command of the ship. Stenhouse's inexperience may have contributed to the choice of an inappropriate winter's berth, although his options were restricted by the instructions of his superiors. After the ship was blown away it suffered severe damage in the ice, including the destruction of its rudder and the loss of its anchors; on several occasions its situation was such that Stenhouse considered abandonment. Efforts to make wireless contact with Cape Evans and, later, with stations in New Zealand and Australia, were unavailing; the drift extended through the southern winter and spring to reach a position north of the Antarctic Circle. In February 1916 the ice broke up, and a month later the ship was free. It was subsequently able to reach New Zealand for repairs and resupply, before returning to Antarctica to rescue the seven surviving members of the shore party. (Full article...)
The killer whale, also known as an orca (Orcinus orca), is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. Killer whales have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and other species of dolphin. They have been known to attack baleen whale calves, and even adult whales. Killer whales are apex predators, as no animal preys on them. A cosmopolitan species, they can be found in each of the world's oceans in a variety of marine environments, from Arctic and Antarctic regions to tropical seas, absent only from the Baltic and Black seas, and some areas of the Arctic Ocean.

Killer whales are highly social; some populations are composed of matrilineal family groups (pods) which are the most stable of any animal species. Their sophisticated hunting techniques and vocal behaviours, which are often specific to a particular group and passed across generations, have been described as manifestations of animal culture. (Full article...)
Cherry Springs State Park is an 82-acre (33 ha)^[a] Pennsylvania state park in Potter County, Pennsylvania, United States. The park was created from land within the Susquehannock State Forest, and is on Pennsylvania Route 44 in West Branch Township. Cherry Springs, named for a large stand of Black Cherry trees in the park, is atop the dissected Allegheny Plateau at an elevation of 2,300 feet (701 m). It is popular with astronomers and stargazers for having "some of the darkest night skies on the east coast" of the United States, and was chosen by the Pennsylvania Department of Conservation and Natural Resources (DCNR) and its Bureau of Parks as one of "25 Must-See Pennsylvania State Parks".

The earliest recorded inhabitants of the area were the Susquehannocks, followed by the Seneca nation, who hunted there. The first settlement within the park was a log tavern built in 1818 along a trail; the trail became a turnpike by 1834 and a hotel replaced the tavern in 1874, then burned in 1897. In the late 19th and early 20th centuries the old-growth forests were clearcut; the state forest was established in 1901 and contains second growth woodlands. "Cherry Springs Scenic Drive" was established in 1922, and the Civilian Conservation Corps built much of Cherry Springs State Park during the Great Depression, including a picnic pavilion listed on the National Register of Historic Places (NRHP). An annual "Woodsmen's Show" has been held in the park each August since 1952. (Full article...)
The siege of Thessalonica between 1422 and 1430 saw the Ottoman Empire under Sultan Murad II capture the city of Thessalonica, which remained in Ottoman hands for the next five centuries, until it became part of the Kingdom of Greece in 1912.

Thessalonica had already been under Ottoman control from 1387 to 1403 before returning to Byzantine rule in the aftermath of the Battle of Ankara. In 1422, after the Byzantines supported Mustafa Çelebi as a rival pretender against him, Murad attacked Thessalonica. Unable to provide manpower or resources for the city's defense, its ruler, Andronikos Palaiologos, handed it over to the Republic of Venice in September 1423. The Venetians attempted to persuade the Sultan to recognize their possession, but failed as Murad considered the city his by right and the Venetians to be interlopers. This impasse led to an Ottoman blockade of Thessalonica, which occasionally flared up with direct attacks on the city. At the same time, the conflict was mostly fought as a series of raids by both sides against the other's territories in the Balkans and the Aegean islands. The Venetians repeatedly tried to apply pressure by blocking the passage of the Dardanelles at Gallipoli, with little success. (Full article...)
Washington, D.C., formally the District of Columbia and also known as D.C. or Washington, is the capital city of the United States of America. It is located on the Potomac River bordering Maryland and Virginia, with Congress holding its first session there in 1800. The city was named for George Washington, the first president of the United States and a Founding Father, and the federal district is named after Columbia, a female personification of the nation. As the seat of the U.S. federal government and several international organizations, the city is an important world political capital. It is one of the most visited cities in the U.S., with over 20 million visitors in 2016.

The U.S. Constitution provided for a federal district under the exclusive jurisdiction of U.S. Congress; the district is therefore not a part of any U.S. state. The signing of the Residence Act on July 16, 1790, approved the creation of a capital district located along the Potomac River near the country's East Coast. The City of Washington was founded in 1791 to serve as the national capital. In 1801, the land, formerly part of Maryland and Virginia (including the settlements of Georgetown and Alexandria), officially became recognized as the federal district. In 1846, Congress returned the land originally ceded by Virginia, including the city of Alexandria; in 1871, it created a single municipal government for the remaining portion of the district. (Full article...)
Bristol (/ˈbrɪstəl/ (listen)) is a city and ceremonial county in England, United Kingdom. With a population of 463,400, it is the most populous city in South West England. The wider Bristol Built-Up Area has the 10th-largest population in England. The urban area population of 670,000 is the 11th-largest in the UK. The city lies between Gloucestershire to the north and Somerset to the south. South Wales lies across the Severn estuary.

Iron Age hill forts and Roman villas were built near the confluence of the rivers Frome and Avon, and around the beginning of the 11th century, the settlement was known as Brycgstow (Old English "the place at the bridge"). Bristol received a royal charter in 1155 and was historically divided between Gloucestershire and Somerset until 1373 when it became a county of itself. From the 13th to the 18th century, Bristol was among the top three English cities, after London, in tax receipts; however, it was surpassed by the rapid rise of Birmingham, Manchester and Liverpool in the Industrial Revolution. (Full article...)

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In this month

1 January 2006 – University of Oklahoma College of Atmospheric and Geographic Sciences started, when it and the College of Earth and Energy were spun off of the old College of Geosciences
12 January 2001 – National Geographic Channel launched in the United States
25 January 1983 – Creation of the Instituto Nacional de Estadística y Geografía (pictured) in Mexico
27 January 1888 – Formation of the National Geographic Society

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Vital article

Vital articles to understand Geography.

Asia (/ˈeɪʒə, ˈeɪʃə/ (

listen)) is Earth's largest and most populous continent, located primarily in the Eastern and Northern Hemispheres. It shares the continental landmass of Eurasia with the continent of Europe and the continental landmass of Afro-Eurasia with both Europe and Africa. Asia covers an area of 44,579,000 square kilometres (17,212,000 sq mi), about 30% of Earth's total land area and 8.7% of the Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Asia is notable for not only its overall large size and population, but also dense and large settlements, as well as vast barely populated regions. Its 4.5 billion people () constitute roughly 60% of the world's population. (Full article...)

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Mount Everest
Photo credit: Luca Galuzzi
The north face of Mount Everest, as seen from Tibet. Everest is the highest mountain on Earth, as measured by the height of its summit above sea level, which is 8,848 metres (29,029 ft). In 1865, Everest was given its official English name by the Royal Geographical Society upon recommendation of Andrew Waugh, the British Surveyor General of India at the time.
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Natural Earth projection
Map: Strebe, using the Geocart map projection software
A map of the world using the Natural Earth projection, a pseudocylindrical projection which is neither conformal nor equal-area. The projection was designed by Tom Patterson, an American cartographer with the National Park Service who has developed several open-source tools and base maps for cartographers.

This map is a derivative of NASA's Blue Marble summer month composite, with oceans lightened to enhance legibility and contrast.
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Featured biography

Featured biography articles in geography

A stamp of Zhang Heng issued by China Post in 1955

Zhang Heng (Chinese: 張衡; AD 78–139), formerly romanized as Chang Heng, was a Chinese polymathic scientist and statesman from Nanyang who lived during the Han dynasty. Educated in the capital cities of Luoyang and Chang'an, he achieved success as an astronomer, mathematician, seismologist, hydraulic engineer, inventor, geographer, cartographer, ethnographer, artist, poet, philosopher, politician, and literary scholar.

Zhang Heng began his career as a minor civil servant in Nanyang. Eventually, he became Chief Astronomer, Prefect of the Majors for Official Carriages, and then Palace Attendant at the imperial court. His uncompromising stance on historical and calendrical issues led to his becoming a controversial figure, preventing him from rising to the status of Grand Historian. His political rivalry with the palace eunuchs during the reign of Emperor Shun (r. 125–144) led to his decision to retire from the central court to serve as an administrator of Hejian Kingdom in present-day Hebei. Zhang returned home to Nanyang for a short time, before being recalled to serve in the capital once more in 138. He died there a year later, in 139. (Full article...)

More featured biographies
Pierre Rossier Edward Wright (mathematician) Emery Molyneux Daniel Boone Albert Stanley, 1st Baron Ashfield Caspar David Friedrich Robert Hues Alfred Russel Wallace Mary Anning Edward Drinker Cope Georg Forster David A. Johnston Richard Hakluyt James Tod Shen Kuo Fridtjof Nansen Clements Markham

Did you know...

Did you know it about Geography?

... that the first known paravian dinosaurs were from China, but they now live on every continent?
... that during the collision of India with Asia, the southern part of the Tibetan Plateau achieved its high elevation before the northern part?
... that although Constance Kies was a nutrition scientist, she majored in English, and minored in history, geography, library science, and home economics?
... that the dark and fatalistic humour of Canadian comedians has been attributed to the dangers of Canada's climate and geography?