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The World Portal

The world 
Theworld 

The Blue Marble, a photograph of the planet Earth made on 7 December 1972 by the crew of theApollo 17 spacecraft.

Theworld is the totality of entities, the whole ofreality, or everything thatexists. The nature of the world has beenconceptualized differently in different fields. Some conceptions see the world as unique, while others talk of a "plurality of worlds". Some treat the world asone simple object, while others analyze the world as a complex made up of parts.

Inscientific 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". Inphilosophy 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. Inreligions, 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 aworldview.Cosmogony is the field that studies the origin or creation of the world, whileeschatology 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 theEarth 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, andworld 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

  • Image 1 The top 10 busiest container ports by year (2004–2024) This article lists the world's busiest container ports (ports with container terminals that specialize in handling goods transported in intermodal shipping containers), by total number of twenty-foot equivalent units (TEUs) transported through the port. The table lists volume in thousands of TEU per year. The vast majority of containers moved by large, ocean-faring container ships are 20-foot (1 TEU) and 40-foot (2 TEU) ISO-standard shipping containers, with 40-foot units outnumbering 20-foot units to such an extent that the actual number of containers moved is between 55%–60% of the number of TEUs counted. The latest ranking reflected the figures for the year 2025, as published in the Lloyds List Top 100 and World Shipping Council (2025 figures), unless otherwise indicated. (Full article...)
    Image 1

    The top 10 busiest container ports by year (2004–2024)

    This article lists the world's busiestcontainerports (ports withcontainer terminals that specialize in handling goods transported inintermodal shipping containers), by total number oftwenty-foot equivalent units (TEUs) transported through the port. The table lists volume in thousands of TEU per year. The vast majority of containers moved by large, ocean-faringcontainer ships are 20-foot (1 TEU) and 40-foot (2 TEU)ISO-standardshipping containers, with 40-foot units outnumbering 20-foot units to such an extent that the actual number of containers moved is between 55%–60% of the number of TEUs counted.

    The latest ranking reflected the figures for the year 2025, as published in the Lloyds List Top 100 and World Shipping Council (2025 figures), unless otherwise indicated. (Full article...)
  • Image 2 The map of the mouth of the River Amazon The International Map of the World (IMW; also the Millionth Map of the World, after its scale of 1:1 000 000) was a project to create a complete map of the world according to internationally agreed standards. It was first proposed by the German geographer Albrecht Penck in 1891. The Central Bureau of the Map of the World was established in London. After the Second World War, UNESCO took over the project. By 1953, 400 sheets had been produced. The completed sheets became outdated before the project had produced a full set of maps, and by the 1960s was being dismissed as being of no practical use. The project was no longer monitored by the 1990s. (Full article...)
    Image 2
    map of the mouth of the Amazon
    The map of the mouth of theRiver Amazon

    TheInternational Map of the World (IMW; also theMillionth Map of the World, after itsscale of 1:1 000 000) was a project to create a completemap of the world according to internationally agreed standards. It was first proposed by the GermangeographerAlbrecht Penck in 1891.

    The Central Bureau of the Map of the World was established in London. After theSecond World War,UNESCO took over the project. By 1953, 400 sheets had been produced. The completed sheets became outdated before the project had produced a full set of maps, and by the 1960s was being dismissed as being of no practical use. The project was no longer monitored by the 1990s. (Full article...)
  • Image 3 The international community is a term used in geopolitics and international relations to refer to a broad group of people and governments of the world. (Full article...)
    Image 3
    Theinternational community is a term used ingeopolitics andinternational relations to refer to a broad group of people and governments of the world. (Full article...)
  • Image 4 Hotspots of sulfate aerosol pollution in 2005–2007 are highlighted in orange. Such sulfates rarely occur naturally outside of volcanic activity, and their increased levels are the main cause of global dimming. Global dimming is a decline in the amount of sunlight reaching the Earth's surface. It is caused by atmospheric particulate matter, predominantly sulfate aerosols, which are components of air pollution. Global dimming was observed soon after the first systematic measurements of solar irradiance began in the 1950s. This weakening of visible sunlight proceeded at the rate of 4–5% per decade until the 1980s. During these years, air pollution increased due to post-war industrialization. Solar activity did not vary more than the usual during this period. Aerosols have a cooling effect on the earth's atmosphere, and global dimming has masked the extent of global warming experienced to date, with the most polluted regions even experiencing cooling in the 1970s. The opposite effects it has on global warming appears to be beneficial to the environment. Global dimming has interfered with the water cycle by lowering evaporation, and thus has probably reduced rainfall in certain areas. It may have weakened the Monsoon of South Asia and caused the entire tropical rain belt to shift southwards between 1950 and 1985, with a limited recovery afterwards. Record levels of particulate pollution in the Northern Hemisphere caused or at least exacerbated the monsoon failure behind the 1984 Ethiopian famine. (Full article...)
    Image 4
    Hotspots ofsulfate aerosol pollution in 2005–2007 are highlighted in orange. Such sulfates rarely occur naturally outside of volcanic activity, and their increased levels are the main cause of global dimming.

    Global dimming is a decline in the amount of sunlight reaching theEarth's surface. It is caused byatmospheric particulate matter, predominantlysulfate aerosols, which are components ofair pollution. Global dimming was observed soon after the first systematic measurements of solar irradiance began in the 1950s. This weakening of visible sunlight proceeded at the rate of 4–5% per decade until the 1980s. During these years, air pollution increased due to post-war industrialization.Solar activity did not vary more than the usual during this period.

    Aerosols have a cooling effect on the earth's atmosphere, and global dimming has masked the extent ofglobal warming experienced to date, with the most polluted regions even experiencing cooling in the 1970s. The opposite effects it has on global warming appears to be beneficial to the environment. Global dimming has interfered with thewater cycle by lowering evaporation, and thus has probably reduced rainfall in certain areas. It may have weakened theMonsoon of South Asia and caused the entire tropical rain belt to shift southwards between 1950 and 1985, with a limited recovery afterwards. Record levels of particulate pollution in the Northern Hemisphere caused or at least exacerbated the monsoon failure behind the1984 Ethiopian famine. (Full article...)
  • Image 5 Action for Climate Empowerment (ACE) is a term adopted by the United Nations Framework Convention on Climate Change (UNFCCC). It refers to Article 6 of the Convention's original text (1992), focusing on six priority areas: education, training, public awareness, public participation, public access to information, and international cooperation on these issues. The implementation of all six areas has been identified as the pivotal factor for everyone to understand and participate in solving the complex challenges presented by climate change. The importance of ACE is reflected in other international frameworks such as the Sustainable Development Goals (SDGs, 2015); the Global Action Programme for Education for Sustainable Development (GAP on ESD, 2014); the Aarhus Convention (2011); the Escazú Agreement (2018) and the Bali Guidelines (2010). ACE calls on governments to develop and implement educational and public awareness programmes, train scientific, technical and managerial personnel, foster access to information, and promote public participation in addressing climate change and its effects. It also urges countries to cooperate in this process, by exchanging good practices and lessons learned, and strengthening national institutions. This wide scope of activities is guided by specific objectives that, together, are seen as crucial for effectively implementing climate adaptation and mitigation actions, and for achieving the ultimate objective of the UNFCCC. (Full article...)
    Image 5
    Action for Climate Empowerment (ACE) is a term adopted by theUnited Nations Framework Convention on Climate Change (UNFCCC). It refers to Article 6 of the Convention's original text (1992), focusing on six priority areas: education, training, public awareness,public participation, publicaccess to information, andinternational cooperation on these issues. The implementation of all six areas has been identified as the pivotal factor for everyone to understand and participate in solving the complex challenges presented byclimate change. The importance of ACE is reflected in other international frameworks such as theSustainable Development Goals (SDGs, 2015); the Global Action Programme forEducation for Sustainable Development (GAP on ESD, 2014); theAarhus Convention (2011); the Escazú Agreement (2018) and the Bali Guidelines (2010).

    ACE calls on governments to develop and implement educational and public awareness programmes, train scientific, technical and managerial personnel, foster access to information, and promote public participation in addressing climate change and its effects. It also urges countries to cooperate in this process, by exchanging good practices and lessons learned, and strengthening national institutions. This wide scope of activities is guided by specific objectives that, together, are seen as crucial for effectively implementingclimate adaptation and mitigation actions, and for achieving the ultimate objective of the UNFCCC. (Full article...)
  • Image 6 This marker indicating sea level is situated between Jerusalem and the Dead Sea. Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datum – a standardised geodetic datum – that is used, for example, as a chart datum in cartography and marine navigation, or, in aviation, as the standard sea level at which atmospheric pressure is measured to calibrate altitude and, consequently, aircraft flight levels. A common and relatively straightforward mean sea-level standard is instead a long-term average of tide gauge readings at a particular reference location. The term above sea level generally refers to the height above mean sea level (AMSL). The term APSL means above present sea level, comparing sea levels in the past with the level today. (Full article...)
    Image 6
    This marker indicating sea level is situated betweenJerusalem and theDead Sea.


    Mean sea level (MSL, often shortened tosea level) is anaverage surface level of one or more amongEarth's coastalbodies of water from which heights such aselevation may be measured. The global MSL is a type ofvertical datum – a standardisedgeodetic datum – that is used, for example, as achart datum incartography andmarine navigation, or, in aviation, as thestandard sea level at whichatmospheric pressure is measured tocalibrate altitude and, consequently, aircraftflight levels. A common and relatively straightforward mean sea-level standard is instead a long-term average oftide gauge readings at a particular reference location.

    The termabove sea level generally refers to theheight above mean sea level (AMSL). The termAPSL means above present sea level, comparing sea levels in the past with the level today. (Full article...)
  • Image 7 Global change in broad sense refers to planetary-scale changes in the Earth system. It is most commonly used to encompass the variety of changes connected to the rapid increase in human activities which started around mid-20th century, i.e., the Great Acceleration. While the concept stems from research on the climate change, it is used to adopt a more holistic view of the observed changes. Global change refers to the changes of the Earth system, treated in its entirety with interacting physicochemical and biological components as well as the impact human societies have on the components and vice versa. Therefore, the changes are studied through means of Earth system science. (Full article...)
    Image 7
    Global change in broad sense refers to planetary-scale changes in the Earth system. It is most commonly used to encompass the variety of changes connected to the rapid increase in human activities which started around mid-20th century, i.e., theGreat Acceleration. While the concept stems from research on theclimate change, it is used to adopt a moreholistic view of the observed changes. Global change refers to the changes of the Earth system, treated in its entirety with interacting physicochemical andbiological components as well as the impact human societies have on the components andvice versa. Therefore, the changes are studied through means ofEarth system science. (Full article...)

General images -load new batch

The following are images from various world-related articles on Wikipedia.

Megacities of the world -show another

Istanbul is thelargest city inTurkey, constituting the country's economic, cultural, and historical heart. Witha population over15 million, it is home to 18% of thepopulation of Turkey. Istanbul is among thelargest cities in Europe andin the world by population. It is a city on two continents; about two-thirds of its population live inEurope and the rest inAsia. Istanbul straddles theBosphorus—one of the world's busiest waterways—in northwestern Turkey, between theSea of Marmara and theBlack Sea. Its area of 5,461 square kilometers (2,109 sq mi) is coterminous with Istanbul Province. Under theKöppen climate classification, Istanbul's climate is considered a form ofMediterranean climate, with aspects of othertemperate climate types.

The city now known as Istanbul developed to become one of the most significant cities in history.Byzantium was founded on theSarayburnu promontory byGreek colonists, potentially in the seventh century BC. Over nearly 16 centuries following its reestablishment asConstantinople in 330 AD, it served as the capital of four empires: theRoman Empire (330–395), theByzantine Empire (395–1204 and 1261–1453), theLatin Empire (1204–1261), and theOttoman Empire (1453–1922). It was instrumental in the advancement of Christianity during Roman and Byzantine times, before the Ottomansconquered the city in 1453 and transformed it into an Islamic stronghold and the seat of thelast caliphate. Although the Republic of Turkey established its capital inAnkara, palaces and imperial mosques still line Istanbul's hills as visible reminders of the city's previous central role.The historic centre of Istanbul is aUNESCO World Heritage Site. (Full article...)

Did you know -load new batch

Countries of the world -show another

Mozambique, officially theRepublic of Mozambique, is a country located inSoutheast Africa bordered by the Indian Ocean to the east,Tanzania to the north,Malawi andZambia to the northwest,Zimbabwe to the west, andEswatini andSouth Africa to the south and southwest. Thesovereign state is separated from theComoros,Mayotte, andMadagascar through theMozambique Channel to the east. The capital and largest city isMaputo.

Between the 7th and 11th centuries, a series of Swahili port towns developed in the area, which contributed to the development of a distinctSwahili culture and dialect. In the late medieval period, these towns were frequented by traders from Somalia, Ethiopia,Egypt, Arabia, Persia, andIndia. The voyage ofVasco da Gama in 1498 marked the arrival of thePortuguese, who began a gradual process of colonisation and settlement in 1505. After over four centuries ofPortuguese rule, Mozambiquegained independence in 1975, becoming thePeople's Republic of Mozambique shortly thereafter. After only two years of independence, the country descended into an intense and protractedcivil war lasting from 1977 to 1992. In 1994, Mozambique held its first multiparty elections and has since remained a relatively stablepresidential republic, although it still faces alow-intensity insurgency mainly in the furthest regions from the southern capital and where Islam is dominant. (Full article...)

List of countries

Seven Wonders of the Industrial World is a 7-part Britishdocudrama televisionminiseries that originally aired from 4 September 2003 (2003-09-04) to 16 October 2003 (2003-10-16) onBBC and was later released on DVD. The programme examines seven engineering feats that occurred since theIndustrial Revolution. The same feats are covered in a companion book of the same name by producerDeborah Cadbury. (Full article...)

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    • also part of Polynesia
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    Cenozoic Era
    (present–66.0 Ma)
    Quaternary(present–2.58 Ma)
    Neogene(2.58–23.0 Ma)
    Paleogene(23.0–66.0 Ma)
    Example of stratigraphic column
    Mesozoic Era
    (66.0–252 Ma)
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    (252–539 Ma)
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    Archean Eon(2.5–4 Ga)
    Hadean Eon(4–4.6 Ga)
     
    ka = kiloannum (thousand years ago);Ma = megaannum (million years ago);Ga = gigaannum (billion years ago).
    See also:Geologic time scale  • iconGeology portal  • World portal



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    Postponed to 2021 due to theCOVID-19 pandemic


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    1. ^Cancelled due toWorld War I
    2. ^abcdCancelled due toWorld War II
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