Portal:World
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The World Portal
The world is the totality of entities, the whole of reality, or everything that exists. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique, while others talk of a "plurality of worlds". Some treat the world as one simple object, while others analyze the world as a complex made up of parts.
In scientific cosmology, the world or universe is commonly defined as "the totality of all space and time; all that is, has been, and will be". Theories of modality talk of possible worlds as complete and consistent ways how things could have been. Phenomenology, starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon, or the "horizon of all horizons". In philosophy of mind, the world is contrasted with the mind as that which is represented by the mind.
Theology conceptualizes the world in relation to God, for example, as God's creation, as identical to God, or as the two being interdependent. In religions, there is a tendency to downgrade the material or sensory world in favor of a spiritual world to be sought through religious practice. A comprehensive representation of the world and our place in it, as is found in religions, is known as a worldview. Cosmogony is the field that studies the origin or creation of the world, while eschatology refers to the science or doctrine of the last things or of the end of the world.
In various contexts, the term "world" takes a more restricted meaning associated, for example, with the Earth and all life on it, with humanity as a whole, or with an international or intercontinental scope. In this sense, world history refers to the history of humanity as a whole, and world politics is the discipline of political science studying issues that transcend nations and continents. Other examples include terms such as "world religion", "world language", "world government", "world war", "world population", "world economy", or "world championship". (Full article...)
Selected articles - show another
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Image 1
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations.
The goals of the Red List are to provide scientifically based information on the status of species and subspecies at a global level, to draw attention to the magnitude and importance of threatened biodiversity, to influence national and international policy and decision-making, and to provide information to guide actions to conserve biological diversity. (Full article...) -
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The World Rally Championship (abbreviated as WRC) is an international rallying series owned and governed by the FIA. Inaugurated in 1973, it is the second oldest of the FIA's world championships after Formula One. Each season lasts one calendar year, and separate championship titles are awarded to drivers, co-drivers and manufacturers. There are also two support championships, WRC2 and WRC3, which are contested on the same events and stages as the WRC, but with progressively lower maximum performance and running costs of the cars permitted. Junior WRC is also contested on five events of the World Rally Championship calendar.
A WRC season typically consists of 13 three- to four-day rally events driven on surfaces ranging from gravel and tarmac to snow and ice. Each rally is usually split into 15–25 special stages which are run against the clock on up to 350 kilometres (220 mi) of closed roads. (Full article...) -
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The natural history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to understanding of the main events of Earth's past, characterized by constant geological change and biological evolution.
The geological time scale (GTS), as defined by international convention, depicts the large spans of time from the beginning of the Earth to the present, and its divisions chronicle some definitive events of Earth history. Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen. Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. While the Earth was in its earliest stage (Early Earth), a giant impact collision with a planet-sized body named Theia is thought to have formed the Moon. Over time, the Earth cooled, causing the formation of a solid crust, and allowing liquid water on the surface. (Full article...) -
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The Great Recession was a period of market decline in economies around the world that occurred from late 2007 to mid-2009. The scale and timing of the recession varied from country to country (see map). At the time, the International Monetary Fund (IMF) concluded that it was the most severe economic and financial meltdown since the Great Depression.
The causes of the Great Recession include a combination of vulnerabilities that developed in the financial system, along with a series of triggering events that began with the bursting of the United States housing bubble in 2005–2012. When housing prices fell and homeowners began to abandon their mortgages, the value of mortgage-backed securities held by investment banks declined in 2007–2008, causing several to collapse or be bailed out in September 2008. This 2007–2008 phase was called the subprime mortgage crisis. (Full article...) -
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The Space Race (Russian: Космическая гонка [kɐsˈmʲitɕɪskəjə ˈɡonkə]) was a 20th-century competition between two Cold War rivals, the United States and the Soviet Union, to achieve superior spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the two nations following World War II and had its peak with the more particular Moon Race to land on the Moon between the US moonshot and Soviet moonshot programs. The technological advantage demonstrated by spaceflight achievement was seen as necessary for national security and became part of the symbolism and ideology of the time. The Space Race brought pioneering launches of artificial satellites, robotic space probes to the Moon, Venus, and Mars, and human spaceflight in low Earth orbit and ultimately to the Moon.
Public interest in space travel originated in the 1951 publication of a Soviet youth magazine and was promptly picked up by US magazines. The competition began on July 30, 1955, when the United States announced its intent to launch artificial satellites for the International Geophysical Year. Four days later, the Soviet Union responded by declaring they would also launch a satellite "in the near future". The launching of satellites was enabled by developments in ballistic missile capabilities since the end of World War II. The competition gained Western public attention with the "Sputnik crisis", when the USSR achieved the first successful satellite launch, Sputnik 1, on October 4, 1957. It gained momentum when the USSR sent the first human, Yuri Gagarin, into space with the orbital flight of Vostok 1 on April 12, 1961. These were followed by a string of other early firsts achieved by the Soviets over the next few years. (Full article...) -
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Nature is an inherent character or constitution, particularly of the ecosphere or the universe as a whole. In this general sense nature refers to the laws, elements and phenomena of the physical world, including life. Although humans are part of nature, human activity or humans as a whole are often described as at times at odds, or outright separate and even superior to nature.
During the advent of modern scientific method in the last several centuries, nature became the passive reality, organized and moved by divine laws. With the Industrial Revolution, nature increasingly became seen as the part of reality deprived from intentional intervention: it was hence considered as sacred by some traditions (Rousseau, American transcendentalism) or a mere decorum for divine providence or human history (Hegel, Marx). However, a vitalist vision of nature, closer to the pre-Socratic one, got reborn at the same time, especially after Charles Darwin. (Full article...) -
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The World Trade Organization (WTO) is an intergovernmental organization headquartered in Geneva, Switzerland that regulates and facilitates international trade. Governments use the organization to establish, revise, and enforce the rules that govern international trade in cooperation
with the United Nations System. The WTO is the world's largest international economic organization, with 166 members representing over 98% of global trade and global GDP.
The WTO facilitates trade in goods, services and intellectual property among participating countries by providing a framework for negotiating trade agreements, which usually aim to reduce or eliminate tariffs, quotas, and other restrictions; these agreements are signed by representatives of member governments and ratified by their legislatures. It also administers independent dispute resolution for enforcing participants' adherence to trade agreements and resolving trade-related disputes. The organization prohibits discrimination between trading partners, but provides exceptions for environmental protection, national security, and other important goals. (Full article...)
General images - load new batch
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Image 2Chloroplasts in the cells of a moss (from History of Earth)
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Image 3Vitruvian Man by Leonardo da Vinci epitomizes the advances in art and science seen during the Renaissance. (from History of Earth)
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Image 4Atomic bombing of Nagasaki, 1945
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Image 6A pillar at Göbekli Tepe
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Image 7Battle during the 1281 Mongol invasion of Japan
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Image 8Change in average surface air temperature and drivers for that change. Human activity has caused increased temperatures, with natural forces adding some variability. (from Earth)
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Image 9Earth's axial tilt causing different angles of seasonal illumination at different orbital positions around the Sun (from Earth)
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Image 10Obelisk of Axum, Ethiopia
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Image 11The pale orange dot, an artist's impression of the early Earth which might have appeared orange through its hazy methane rich prebiotic second atmosphere. Earth's atmosphere at this stage was somewhat comparable to today's atmosphere of Titan. (from History of Earth)
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Image 13Last Moon landing: Apollo 17 (1972)
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Image 16Great Mosque of Kairouan, Tunisia, founded 670 CE
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Image 17Cuneiform inscription, eastern Turkey
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Image 18Earth's history with time-spans of the eons to scale. Ma means "million years ago". (from History of Earth)
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Image 20A view of Earth with its global ocean and cloud cover, which dominate Earth's surface and hydrosphere; at Earth's polar regions, its hydrosphere forms larger areas of ice cover. (from Earth)
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Image 22Pangaea was a supercontinent that existed from about 300 to 180 Ma. The outlines of the modern continents and other landmasses are indicated on this map. (from History of Earth)
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Image 23Benin Bronze head from Nigeria
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Image 24Artist's impression of a Hadean landscape with the relatively newly formed Moon still looming closely over Earth and both bodies sustaining strong volcanism. (from History of Earth)
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Image 25Standing Buddha from Gandhara, 2nd century CE
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Image 26An animation of the changing density of productive vegetation on land (low in brown; heavy in dark green) and phytoplankton at the ocean surface (low in purple; high in yellow) (from Earth)
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Image 28Shanghai. China urbanized rapidly in the 21st century.
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Image 29Fall of the Berlin Wall, 1989
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Image 32A map of heat flow from Earth's interior to the surface of Earth's crust, mostly along the oceanic ridges (from Earth)
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Image 33Tracy Caldwell Dyson, a NASA astronaut, observing Earth from the Cupola module at the International Space Station on 11 September 2010 (from Earth)
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Image 34Empires of the world in 1898
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Image 36Ajloun Castle, Jordan
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Image 37Great Pyramids of Giza, Egypt
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Image 38Angkor Wat temple complex, Cambodia, early 12th century
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Image 40A 2012 artistic impression of the early Solar System's protoplanetary disk from which Earth and other Solar System bodies were formed (from Earth)
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Image 42Artist's impression of Earth during the later Archean, the largely cooled planetary crust and water-rich barren surface, marked by volcanoes and continents, features already round microbialites. The Moon, still orbiting Earth much closer than today and still dominating Earth's sky, produced strong tides. (from History of Earth)
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Image 44"Lucy", the first Australopithecus afarensis skeleton found, was only 1.06 m (3 ft 6 in) tall.
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Image 4713th-century French historiated initial with the three classes of medieval society: those who prayed (the clergy), those who fought (the knights), and those who worked (the peasantry) (from Human history)
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Image 48Tiktaalik, a fish with limb-like fins and a predecessor of tetrapods. Reconstruction from fossils about 375 million years old. (from History of Earth)
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Image 50Earth's night-side upper atmosphere appearing from the bottom as bands of afterglow illuminating the troposphere in orange with silhouettes of clouds, and the stratosphere in white and blue. Next the mesosphere (pink area) extends to the orange and faintly green line of the lowest airglow, at about one hundred kilometers at the edge of space and the lower edge of the thermosphere (invisible). Continuing with green and red bands of aurorae stretching over several hundred kilometers. (from Earth)
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Image 51Lithified stromatolites on the shores of Lake Thetis, Western Australia. Archean stromatolites are the first direct fossil traces of life on Earth. (from History of Earth)
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Image 55Graph showing range of estimated partial pressure of atmospheric oxygen through geologic time (from History of Earth)
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Image 57Trilobites first appeared during the Cambrian period and were among the most widespread and diverse groups of Paleozoic organisms. (from History of Earth)
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Image 58Artist's rendition of an oxinated fully-frozen Snowball Earth with no remaining liquid surface water. (from History of Earth)
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Image 59Notre-Dame de Paris, France
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Image 60A 580 million year old fossil of Spriggina floundensi, an animal from the Ediacaran period. Such life forms could have been ancestors to the many new forms that originated in the Cambrian Explosion. (from History of Earth)
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Image 63A computer-generated image mapping the prevalence of artificial satellites and space debris around Earth in geosynchronous and low Earth orbit (from Earth)
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Image 65Artist's conception of Hadean Eon Earth, when it was much hotter and inhospitable to all forms of life. (from History of Earth)
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Image 66A composite image of Earth, with its different types of surface discernible: Earth's surface dominating Ocean (blue), Africa with lush (green) to dry (brown) land and Earth's polar ice in the form of Antarctic sea ice (grey) covering the Antarctic or Southern Ocean and the Antarctic ice sheet (white) covering Antarctica. (from Earth)
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Image 67One of the eleven Rock-hewn Churches of Lalibela constructed during the Zagwe dynasty in Ethiopia (from Human history)
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Image 68Yggdrasil, an attempt to reconstruct the Norse world tree which connects the heavens, the world, and the underworld. (from World)
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Image 69First airplane, the Wright Flyer, flew on 17 December 1903.
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Image 70A schematic view of Earth's magnetosphere with solar wind flowing from left to right (from Earth)
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Image 71Geologic map of North America, color-coded by age. From most recent to oldest, age is indicated by yellow, green, blue, and red. The reds and pinks indicate rock from the Archean.
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Image 72Earth's land use for human agriculture in 2019 (from Earth)
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Image 73An artist's impression of the Archean, the eon after Earth's formation, featuring round stromatolites, which are early oxygen-producing forms of life from billions of years ago. After the Late Heavy Bombardment, Earth's crust had cooled, its water-rich barren surface is marked by continents and volcanoes, with the Moon still orbiting Earth half as far as it is today, appearing 2.8 times larger and producing strong tides. (from Earth)
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Image 74Pale orange dot, an artist's impression of Early Earth, featuring its tinted orange methane-rich early atmosphere (from Earth)
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Image 75Dinosaurs were the dominant terrestrial vertebrates throughout most of the Mesozoic (from History of Earth)
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Image 76Peopling of the world, the Southern Dispersal scenario
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Image 77A banded iron formation from the 3.15 Ga Moodies Group, Barberton Greenstone Belt, South Africa. Red layers represent the times when oxygen was available; gray layers were formed in anoxic circumstances. (from History of Earth)
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Image 78A reconstruction of Pannotia (550 Ma). (from History of Earth)
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Image 79Artist's impression of the enormous collision that probably formed the Moon (from History of Earth)
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Image 80Earth's western hemisphere showing topography relative to Earth's center instead of to mean sea level, as in common topographic maps (from Earth)
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Image 81A view of Earth with different layers of its atmosphere visible: the troposphere with its clouds casting shadows, a band of stratospheric blue sky at the horizon, and a line of green airglow of the lower thermosphere around an altitude of 100 km, at the edge of space (from Earth)
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Image 83The replicator in virtually all known life is deoxyribonucleic acid. DNA is far more complex than the original replicator and its replication systems are highly elaborate. (from History of Earth)
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Image 84Olmec colossal head, now at the Museo de Antropología de Xalapa
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Image 85A reconstruction of human history based on fossil data. (from History of Earth)
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Image 86Japanese depiction of a Portuguese carrack. European maritime innovations led to proto-globalization.
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Image 87An artist's impression of ice age Earth at glacial maximum. (from History of Earth)
Megacities of the world - show another
Buenos Aires (/ˌbweɪnəs ˈɛəriːz/ or /-ˈaɪrɪs/; Spanish pronunciation: [ˈbwenos ˈajɾes] ⓘ), officially the Autonomous City of Buenos Aires, is the capital and primate city of Argentina. The city is located on the western shore of the Río de la Plata, on South America's southeastern coast. "Buenos aires" is Spanish for "fair winds" or "good airs". Buenos Aires is classified as an Alpha global city, according to the Globalization and World Cities Research Network (GaWC) 2020 ranking.
The city of Buenos Aires is neither part of Buenos Aires Province nor the Province's capital; rather, it is an autonomous district. In 1880, after decades of political infighting, Buenos Aires was federalized and removed from Buenos Aires Province. The city limits were enlarged to include the towns of Belgrano and Flores; both are now neighborhoods of the city. The 1994 constitutional amendment granted the city autonomy, hence its formal name of Autonomous City of Buenos Aires. Its citizens first elected a Chief of Government in 1996; previously, the Mayor was directly appointed by the President of Argentina. (Full article...)
Did you know - load new batch
- ... that while preparing for War Horse, theatre set designer Rae Smith spent weeks pretending to be a First World War British Army captain?
- ... that people in Madagascar wrestle bulls to commemorate the unearthing of ancestral corpses?
- ... that the American Committee for the Defense of British Homes donated a hunting rifle from Theodore Roosevelt to help defend Britain during the Second World War?
- ... that Adolph Schoeninger faced financial ruin three times before becoming one of the largest bicycle manufacturers in the world?
- ... that footballer Han Bong-zin trained in the military every day for four years in preparation for the FIFA World Cup?
- ... that the Trapeze spreadsheet introduced the idea of blocks that InfoWorld called "revolutionary"?
- ... that New Zealand mayor Georgina Beyer was the world's first openly transgender mayor?
- ... that Lia Lewis became a freestyle football world champion three years after switching over from dance?
Countries of the world - show another
Georgia (Georgian: საქართველო, romanized: sakartvelo, IPA: [sakʰartʰʷelo] ⓘ) is a transcontinental country in Eastern Europe and West Asia. It is part of the Caucasus region, bounded by the Black Sea to the west, Russia to the north and northeast, Turkey to the southwest, Armenia to the south, and Azerbaijan to the southeast. Georgia covers an area of 69,700 square kilometres (26,900 sq mi). It has a population of 3.7 million, of which over a third live in the capital and largest city, Tbilisi. Georgians, who are native to the region, constitute a majority of the country's population and are its titular nation.
Georgia has been inhabited since prehistory, hosting the world's earliest known sites of winemaking, gold mining, and textiles. The classical era saw the emergence of several kingdoms, such as Colchis and Iberia, that formed the nucleus of the modern Georgian state. In the early fourth century, Georgians officially adopted Christianity, which contributed to the unification into the Kingdom of Georgia. Georgia reached its Golden Age during the High Middle Ages under the reigns of King David IV and Queen Tamar. Beginning in the 15th century, the kingdom declined and disintegrated under pressure from various regional powers, including the Mongols, the Ottoman Empire, and Persia, before being gradually annexed into the Russian Empire starting in 1801. (Full article...)
The Seven Wonders of Wales (Welsh: Saith Rhyfeddod Cymru) is a traditional list of notable landmarks in north Wales, commemorated in an anonymously written rhyme:
The rhyme is usually supposed to have been written sometime in the late 18th or early 19th century by an English visitor to North Wales. The specific number of wonders may have varied over the years: the antiquary Daines Barrington, in a letter written in 1770, refers to Llangollen Bridge as one of the "five wonders of Wales, though like the seven wonders of Dauphiny, they turn out to be no wonders at all out of the Principality". (Full article...)
Related portals
Protected areas of the world - load new batch
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Image 1The main protected areas of Croatia are national parks, nature parks and strict reserves. There are 444 protected areas of Croatia, encompassing 9% of the country. Those include 8 national parks in Croatia, 2 strict reserves and 11 nature parks. The most famous protected area and the oldest national park in Croatia is the Plitvice Lakes National Park, a UNESCO World Heritage Site. Velebit Nature Park is a part of the UNESCO Man and the Biosphere Programme. The strict and special reserves, as well as the national and nature parks, are managed and protected by the central government, while other protected areas are managed by counties. In 2005, the National Ecological Network was set up, as the first step in preparation of the EU accession and joining of the Natura 2000 network.
The total area of all national parks in the country is 930 km2 (359 sq mi), of which 235 km2 (91 sq mi) is sea surface. Each of the national parks is maintained by a separate institution, overseen and funded by the government ministry of nature conservation and spatial development. The State Institute for Nature Protection provides centralized oversight and expertise. (Full article...) -
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According to the California Protected Areas Database (CPAD), in the state of California, United States, there are over 14,000 inventoried protected areas administered by public agencies and non-profits. In addition, there are private conservation areas and other easements. They include almost one-third of California's scenic coastline, including coastal wetlands, estuaries, beaches, and dune systems. The California State Parks system alone has 270 units and covers 1.3 million acres (5,300 km2), with over 280 miles (450 km) of coastline, 625 miles (1,006 km) of lake and river frontage, nearly 18,000 campsites, and 3,000 miles (5,000 km) of hiking, biking, and equestrian trails.
Obtaining an accurate total of all protected land in California and elsewhere is a complex task. Many parcels have inholdings, private lands within the protected areas, which may or may not be accounted for when calculating total area. Also, occasionally one parcel of land is included in two or more inventories. Over 90% of Yosemite National Park for example, is listed both as wilderness by the National Wilderness Preservation System, and as national park land by the National Park Service. The Cosumnes River Preserve is an extreme example, owned and managed by a handful of public agencies and private landowners, including the Bureau of Land Management, the County of Sacramento and The Nature Conservancy. Despite the difficulties, the CPAD gives the total area of protected land at 49,294,000 acres (199,490 km2), or 47.05% of the state (not including easements); a considerable amount for the most populous state in the country. (Full article...) -
Image 3This is a list of protected areas of Cambodia.
A total of 8 forms of protected area are recognized under the Cambodian Protected Area Law of 2008. These are: (Full article...) -
Image 4The protected areas of Finland include national parks, nature reserves and other areas, with a purpose of conserving areas of all of Finland's ecosystems and biotopes.
Protected areas include:- National parks of Finland (Kansallispuisto/Nationalpark) – 8,170 km2
- Strict nature reserves of Finland (Luonnonpuisto/Naturreservat) – 1,530 km2
- Mire reserves of Finland (Soidensuojelualue/Myrskyddsområde) – 4,490 km2
- Protected herb-rich forest areas (Lehtojensuojelualue/Lundskyddsområde) – 13 km2
- Protected old-growth forest areas (Vanhat metsät/Gamla skogar) – 100 km2
- Grey seal protection areas (Hylkeidensuojelualue/Sälskyddsområde) – 190 km2
- Other protected areas on state-owned land – 468 km2
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Image 5
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Image 6The Ulyanovsk Oblast in Russia contains about 118 protected natural areas. (Full article...)
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The South Caucasian nation of Georgia is home to several protected areas, which receive protection because of their environmental, cultural or similar value. The oldest of these – now known as the Lagodekhi Protected Areas – dates back to 1912, when Georgia was part of the Russian Empire.
The total area of Georgia's protected terrestrial territories is 6,501 km2 (2,510 sq mi), which amounts to approximately 9.29% of the country's territory. In addition 153 km2 (59 sq mi) of marine area protected, or 0.67% of the country's territorial waters. There are a total of 89 protected areas, including 14 Strict Nature Reserves, 12 National Parks, 20 Managed Nature Reserves, 40 Natural Monuments, 2 Ramsar sites and 1 Protected Landscape. Strict nature reserves comprise 140,672 ha, while national parks cover 276,724 ha. The total number of visitors to Georgia's protected areas was just under 1.2 million in 2019. (Full article...) -
Image 8The Australian Capital Territory as of 2014 contains 46 separate protected areas with a total land area of 1,302 km2 (503 sq mi) or 55.5% of the territory's area, and which managed by Territory and Municipal Services of the ACT government: (Full article...)
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Image 9Protected areas of Norway include:
About 17 percent of the mainland of Norway is protected. Of this, ca. 8.3 percent is national parks, 1.3 percent is nature reserves and 4.7 percent otherwise protected. (Full article...) -
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There are numerous protected areas in Belgium with a wide variety of types, protection levels and sizes. The below list gives an overview of the most important protected areas. (Full article...) -
Image 11The Protected areas of New South Wales include both terrestrial and marine protected areas. As of June 2020[update] there are 225 national parks in New South Wales. A number established since the late 1970s followed campaigns by local residents and environmentalists.
Based on the Collaborative Australian Protected Area Database (CAPAD) 2020 data there are 2136 separate terrestrial protected areas with a total land area of 7,696,641 hectares (19,018,810 acres) (9.61% of the state's area). CAPAD data also shows 18 marine protected areas with a total area of 348,849 hectares (862,020 acres), covering 39.63% of NSW waters. (Full article...) -
Image 12
Western Australia is the second largest country subdivision in the world.
As of 2022, based on the latest Collaborative Australian Protected Areas Database report, it contains 1857 separate land-based protected areas with a total area of 76,142,710 hectares (188,152,700 acres), accounting for just over 30 percent of the state's land mass. By area, Indigenous Protected Areas account for the largest part of this, almost 67 percent while, by number, nature reserves hold the majority with two-third of all land-based protected areas being nature reserves. (Full article...) -
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Protected areas cover around 5% of the territory of Serbia. The Law on the Protection of the Nature defines these categories of protected areas:- Strict nature reserve — Area of unmodified natural features with representative ecosystems set aside for the preservation of its biodiversity and for scientific research and monitoring.
- Special nature reserve — Area of unmodified or slightly modified natural features of great importance due to uniqueness and rarity which includes the habitats of endangered species set aside for the preservation of its unique features, education, limited tourism and for scientific research and monitoring.
- National park — Area with large number of diverse ecosystems of national value, with outstanding natural features and/or cultural heritage set aside for the preservation of its natural resources and for educational, scientific and tourist use.
- Natural monument — Small unmodified or slightly modified natural feature, object or phenomenon, easily detectable and unique, with unique natural attributes.
- Protected habitat — Area which includes habitats of one or more wildlife species.
- Landscape of outstanding features — Area of remarkable appearance with important natural and cultural value.
- Nature park — Area of well-preserved natural values with preserved natural ecosystems and picturesque landscape set aside for the preservation of biodiversity and for educational, tourist, recreational and scientific use.
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Image 14This is a list of protected areas of Saudi Arabia, some of which are managed by the Saudi Wildlife Authority.:
- At-Taysiyah Protected Area
- Jabal Shada Nature Reserve
- Majami'al-Hadb Protected Area
- Nafud al-'Urayq
- Raydah Natural Reserve
- 'Uruq Bani Ma'arid
- Saja Umm Ar-Rimth Natural Reserve
- Harrat al-Harrah Protected Area
- Al-Khunfah Natural Reserve
- Ibex Reserve Protected Area
- Mahazat as-Sayd Protected Area
- Umm al-Qamari Islands
- Al-Tubayq Natural Reserve
- Farasan Islands Protected Area
- Jubail Marine Wildlife Sanctuary
- Jabal Aja Protected Area
- Wadi Turabah Nature Reserve
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Image 15
Selected world maps
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Image 1The world map by Gerardus Mercator (1569), the first map in the well-known Mercator projection
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Image 2A plate tectonics map with volcano locations indicated with red circles
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Image 31516 map of the world by Martin Waldseemüller
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Image 4Index map from the International Map of the World (1:1,000,000 scale)
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Image 5United Nations Human Development Index map by country (2016)
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Image 6Only a few of the largest large igneous provinces appear (coloured dark purple) on this geological map, which depicts crustal geologic provinces as seen in seismic refraction data
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Image 7The Goode homolosine projection is a pseudocylindrical, equal-area, composite map projection used for world maps.
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Image 8Mollweide projection of the world
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Image 9Time zones of the world
World records
- List of Olympic records in athletics
- List of world records in athletics
- List of junior world records in athletics
- List of world records in masters athletics
- List of world youth bests in athletics
- List of IPC world records in athletics
- List of world records in canoeing
- List of world records in chess
- List of cycling records
- List of world records in track cycling
- List of world records in finswimming
- List of world records in juggling
- List of world records in rowing
- List of world records in speed skating
- List of world records in swimming
- List of IPC world records in swimming
- List of world records in Olympic weightlifting
Topics
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ka = kiloannum (thousands years ago); Ma = megaannum (millions years ago); Ga = gigaannum (billions years ago). See also: Geologic time scale • Geology portal • World portal |
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†Postponed to 2021 due to the COVID-19 pandemic |
Confederations | |
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World Championships | |
World Cup | |
Special events | |
Presidents |
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Awards |
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Economic classification of countries | |||||
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Three-World Model | |||||
Gross domestic product (GDP) |
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Gross national income (GNI) | |||||
Wages | |||||
Wealth | |||||
Other national accounts | |||||
Human development | |||||
Digital divide | |||||
Net international investment position (NIIP) | |||||
Technological |
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Sociological | |||||
Ecological |
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Biological |
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Astronomical | |||||
Eschatological |
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Others |
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Fictional | |||||
Organizations | |||||
Theatres |
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Principal participants |
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Timeline |
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Aspects |
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General |
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Participants |
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Timeline |
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Categories
Wikimedia
The following Wikimedia Foundation sister projects provide more on this subject:
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Commons
Free media repository -
Wikibooks
Free textbooks and manuals -
Wikidata
Free knowledge base -
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Collection of quotations -
Wikisource
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Directory of species -
Wikiversity
Free learning tools -
Wikivoyage
Free travel guide -
Wiktionary
Dictionary and thesaurus
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