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175-485: Historically, city dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization , more than half of the world population now lives in cities, which has had profound consequences for global sustainability . Present-day cities usually form the core of larger metropolitan areas and urban areas —creating numerous commuters traveling toward city centres for employment, entertainment, and education. However, in

350-404: A philosophy that assumed there were innate differences between "civilized" and "uncivilized" peoples. "Civilization" can also refer to the culture of a complex society, not just the society itself. Every society, civilization or not, has a specific set of ideas and customs, and a certain set of manufactures and arts that make it unique. Civilizations tend to develop intricate cultures, including

525-636: A state -based decision-making apparatus, a literature , professional art , architecture , organized religion and complex customs of education , coercion and control associated with maintaining the elite. The intricate culture associated with civilization has a tendency to spread to and influence other cultures, sometimes assimilating them into the civilization, a classic example being Chinese civilization and its influence on nearby civilizations such as Korea , Japan and Vietnam Many civilizations are actually large cultural spheres containing many nations and regions. The civilization in which someone lives

700-472: A "civilized" way of living. In the 19th century, the idea of European culture as "civilized" and superior to "uncivilized" non-European cultures was fully developed, and civilization became a core part of European identity. The idea of civilization can also be used as a justification for dominating another culture and dispossessing a people of their land. For example, in Australia , British settlers justified

875-575: A central area containing buildings with special economic, political, and religious significance. Archaeologists refer to this area by the Greek term temenos or if fortified as a citadel . These spaces historically reflect and amplify the city's centrality and importance to its wider sphere of influence . Today cities have a city center or downtown , sometimes coincident with a central business district . Cities typically have public spaces where anyone can go. These include privately owned spaces open to

1050-662: A central authority. The term can also refer either to the physical streets and buildings of the city or to the collection of people who dwell there and can be used in a general sense to mean urban rather than rural territory . National censuses use a variety of definitions – invoking factors such as population , population density , number of dwellings , economic function, and infrastructure – to classify populations as urban. Typical working definitions for small-city populations start at around 100,000 people. Common population definitions for an urban area (city or town) range between 1,500 and 50,000 people, with most U.S. states using

1225-461: A central point. This form could evolve from successive growth over a long time, with concentric traces of town walls and citadels marking older city boundaries. In more recent history, such forms were supplemented by ring roads moving traffic around the outskirts of a town. Dutch cities such as Amsterdam and Haarlem are structured as a central square surrounded by concentric canals marking every expansion. In cities such as Moscow , this pattern

1400-478: A century ago. As a result, the world urban population growth curve has up till recently followed a quadratic-hyperbolic pattern. From the development of the earliest cities in Indus valley civilization , Mesopotamia and Egypt until the 18th century, an equilibrium existed between the vast majority of the population who were engaged in subsistence agriculture in a rural context, and small centres of populations in

1575-450: A characteristic of early civilizations. This " urban revolution "—a term introduced by Childe in the 1930s—from the 4th millennium BCE, marked the beginning of the accumulation of transferable economic surpluses , which helped economies and cities develop. Urban revolutions were associated with the state monopoly of violence , the appearance of a warrior , or soldier, class and endemic warfare (a state of continual or frequent warfare),

1750-404: A civilization as a complex system , i.e., a framework by which a group of objects can be analysed that work in concert to produce some result. Civilizations can be seen as networks of cities that emerge from pre-urban cultures and are defined by the economic, political, military, diplomatic, social and cultural interactions among them. Any organization is a complex social system and a civilization

1925-537: A civilization has often been understood as a larger and "more advanced" culture , in implied contrast to smaller, supposedly less advanced cultures. In this broad sense, a civilization contrasts with non-centralized tribal societies, including the cultures of nomadic pastoralists , Neolithic societies, or hunter-gatherers ; however, sometimes it also contrasts with the cultures found within civilizations themselves. Civilizations are organized densely-populated settlements divided into hierarchical social classes with

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2100-551: A combination of these. Societies that live in cities are often called civilizations . The degree of urbanization is a modern metric to help define what comprises a city: "a population of at least 50,000 inhabitants in contiguous dense grid cells (>1,500 inhabitants per square kilometer)". This metric was "devised over years by the European Commission , OECD , World Bank and others, and endorsed in March [2021] by

2275-443: A complex recording system consisting of knotted strings of different lengths and colors: the " Quipus ", and still functioned as a civilized society. Aided by their division of labour and central government planning, civilizations have developed many other diverse cultural traits. These include organized religion , development in the arts, and countless new advances in science and technology. Assessments of what level of civilization

2450-470: A critical threshold where collapse is inevitable. Politically associated with over-reach, and as a result of the environmental exhaustion and polarization of wealth between rich and poor, he concludes the current system is fast arriving at a situation where continuation of the existing system saddled with huge deficits and a hollowed-out economy is physically, socially, economically and politically impossible. Although developed in much more depth, Berman's thesis

2625-531: A crucial role in the establishment of political power over an area, and ancient leaders such as Alexander the Great founded and created them with zeal. Jericho and Çatalhöyük , dated to the eighth millennium BC , are among the earliest proto-cities known to archaeologists. However, the Mesopotamian city of Uruk from the mid-fourth millennium BC (ancient Iraq) is considered by most archaeologists to be

2800-618: A diameter of less than 2.5 micrometres (PM 2.5 ), can cause DNA methylation of CpG sites in immune cells, which increases children's risk of developing asthma. Studies have shown a positive correlation between Foxp3 methylation and children's exposure to NO 2 , CO, and PM 2.5 . Furthermore, any amount of exposure to high levels of air pollution have shown long term effects on the Foxp3 region. Civilization A civilization (also spelled civilisation in British English )

2975-429: A distinctive elite social class, but it should indeed be considered a city based on a functional redefinition of urban development. In particular, Jenné-Jeno featured settlement mounds arranged according to a horizontal, rather than vertical, power hierarchy, and served as a center of specialized production and exhibited functional interdependence with the surrounding hinterland. More recently, scholars have concluded that

3150-693: A division of labour and a more diverse range of human activity, a defining trait of civilizations. However, in some places hunter-gatherers have had access to food surpluses, such as among some of the indigenous peoples of the Pacific Northwest and perhaps during the Mesolithic Natufian culture . It is possible that food surpluses and relatively large scale social organization and division of labour predates plant and animal domestication. Civilizations have distinctly different settlement patterns from other societies. The word civilization

3325-536: A farmer was described as "hot and exhausting". "Everyone says the farmer works the hardest but gets the least amount of money". In an effort to counter this impression, the Agriculture Department of Thailand is seeking to promote the impression that farming is "honorable and secure". However, in Thailand, urbanization has also resulted in massive increases in problems such as obesity. Shifting from

3500-521: A greater risk for obesity, diabetes and related chronic disease. Overall, body mass index and cholesterol levels increase sharply with national income and the degree of urbanization. [40] Food deserts in the United States are most commonly found in low-income and predominately African American neighbourhoods. One study on food deserts in Denver , Colorado found that, in addition to minorities,

3675-654: A grid plan with specialized districts used across the Hellenistic Mediterranean . The urban-type settlement extends far beyond the traditional boundaries of the city proper in a form of development sometimes described critically as urban sprawl . Decentralization and dispersal of city functions (commercial, industrial, residential, cultural, political) has transformed the very meaning of the term and has challenged geographers seeking to classify territories according to an urban-rural binary. Metropolitan areas include suburbs and exurbs organized around

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3850-535: A grocery store are associated with higher rates of obesity and other health disparities. Food deserts in developed countries often correspond to areas with a high density of fast food chains and convenience stores that offer little to no fresh food. Urbanization has been shown to be associated with the consumption of less fresh fruits, vegetables, and whole grains and a higher consumption of processed foods and sugar-sweetened beverages. Poor access to healthy food and high intakes of fat, sugar and salt are associated with

4025-451: A growing increase for addressing other areas of life cycle consumption has occurred from initial stage reduction to heat recovery and recycling of materials. For example, concerns for mass consumption and fast fashion have moved to the forefront of the urban consumers' priorities. Aside from environmental concerns (e.g. climate change effects), other urban concerns for waste management are public health and land access. Urbanization can have

4200-459: A higher content of meat, sugars, refined grains and fats. Urban residents typically have reduced time available for at-home food preparation combined with increased disposable income, facilitating access to convenience foods and ready-to-eat meals. One such effect is the formation of food deserts . Nearly 23.5 million people in the United States lack access to supermarkets within one mile of their home. Several studies suggest that long distances to

4375-507: A key role in both the economy and government. Late antique cities in the East were also undergoing intense transformations, with increased political participation of the crowds and demographical fluctuations. Christian communities and their doctrinal differences increasingly shaped the urban fabric. The locus of power shifted to Constantinople and to the ascendant Islamic civilization with its major cities Baghdad , Cairo , and Córdoba . From

4550-573: A large effect on biodiversity by causing a division of habitats and thereby alienation of species, a process known as habitat fragmentation . Habitat fragmentation does not destroy the habitat, as seen in habitat loss , but rather breaks it apart with things like roads and railways This change may affect a species ability to sustain life by separating it from the environment in which it is able to easily access food, and find areas that they may hide from predation With proper planning and management, fragmentation can be avoided by adding corridors that aid in

4725-526: A minimum between 1,500 and 5,000 inhabitants. Some jurisdictions set no such minima. In the United Kingdom , city status is awarded by the Crown and then remains permanent. (Historically, the qualifying factor was the presence of a cathedral , resulting in some very small cities such as Wells , with a population of 12,000 as of 2018, and St Davids , with a population of 1,841 as of 2011.) According to

4900-473: A more acidic environment. Rapid growth of communities creates new challenges in the developed world and one such challenge is an increase in food waste also known as urban food waste. Food waste is the disposal of food products that can no longer be used due to unused products, expiration, or spoilage. The increase of food waste can raise environmental concerns such as increase production of methane gases and attraction of disease vectors . Landfills are

5075-584: A negative impact on population health particularly affecting people's susceptibility to asthma. In low and middle income countries many factors contribute to the high numbers of people with asthma. Similar to areas in the United States with increasing urbanization, people living in growing cities in low income countries experience high exposure to air pollution, which increases the prevalence and severity of asthma among these populations. Links have been found between exposure to traffic-related air pollution and allergic diseases. Children living in poor, urban areas in

5250-695: A new approach was developed, especially in Germany, first by Johann Gottfried Herder and later by philosophers such as Kierkegaard and Nietzsche . This sees cultures as natural organisms, not defined by "conscious, rational, deliberative acts", but a kind of pre-rational "folk spirit". Civilization, in contrast, though more rational and more successful in material progress, is unnatural and leads to "vices of social life" such as guile, hypocrisy, envy and avarice. In World War II , Leo Strauss , having fled Germany, argued in New York that this opinion of civilization

5425-580: A polity has reached are based on comparisons of the relative importance of agricultural as opposed to trading or manufacturing capacities, the territorial extensions of its power, the complexity of its division of labour , and the carrying capacity of its urban centres . Secondary elements include a developed transportation system, writing, standardized measurement, currency, contractual and tort -based legal systems, art, architecture, mathematics, scientific understanding, metallurgy , political structures, and organized religion. The idea of civilization implies

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5600-702: A privileged elite among towns having won self-governance from their local lord or having been granted self-governance by the emperor and being placed under his immediate protection. By 1480, these cities, as far as still part of the empire, became part of the Imperial Estates governing the empire with the emperor through the Imperial Diet . By the 13th and 14th centuries, some cities become powerful states, taking surrounding areas under their control or establishing extensive maritime empires. In Italy, medieval communes developed into city-states including

5775-417: A progression or development from a previous "uncivilized" state. Traditionally, cultures that defined themselves as "civilized" often did so in contrast to other societies or human groupings viewed as less civilized, calling the latter barbarians , savages , and primitives . Indeed, the modern Western idea of civilization developed as a contrast to the indigenous cultures European settlers encountered during

5950-646: A result of individual, collective and state action. Living in a city can be culturally and economically beneficial since it can provide greater opportunities for access to the labour market, better education, housing, and safety conditions, and reduce the time and expense of commuting and transportation. Conditions like density, proximity, diversity, and marketplace competition are elements of an urban environment that deemed beneficial. However, there are also harmful social phenomena that arise: alienation, stress, increased cost of living, and mass marginalization that are connected to an urban way of living. Suburbanization , which

6125-492: A rule cannot produce their own food and therefore must develop some relationship with a hinterland that sustains them. Only in special cases such as mining towns which play a vital role in long-distance trade, are cities disconnected from the countryside which feeds them. Thus, centrality within a productive region influences siting, as economic forces would, in theory, favor the creation of marketplaces in optimal mutually reachable locations. The vast majority of cities have

6300-533: A ruling elite and subordinate urban and rural populations, which engage in intensive agriculture , mining , small-scale manufacture and trade . Civilization concentrates power, extending human control over the rest of nature, including over other human beings. The word civilization relates to the Latin civitas or ' city '. As the National Geographic Society has explained it: "This

6475-408: A rural environment to an urbanized community also caused a transition to a diet that was mainly carbohydrate-based to a diet higher in fat and sugar, consequently causing a rise in obesity. City life, especially in modern urban slums of the developing world, is certainly hardly immune to pestilence or climatic disturbances such as floods, yet continues to strongly attract migrants. Examples of this were

6650-455: A species of developed humanity is capable". This "unified culture" concept of civilization also influenced the theories of historian Arnold J. Toynbee in the mid-twentieth century. Toynbee explored civilization processes in his multi-volume A Study of History , which traced the rise and, in most cases, the decline of 21 civilizations and five "arrested civilizations". Civilizations generally declined and fell, according to Toynbee, because of

6825-546: A super-wealthy elite living in gated communities and large masses of people living in substandard housing with inadequate infrastructure and otherwise poor conditions. Cities around the world have expanded physically as they grow in population, with increases in their surface extent, with the creation of high-rise buildings for residential and commercial use, and with development underground. Urbanization can create rapid demand for water resources management , as formerly good sources of freshwater become overused and polluted, and

7000-411: A surplus of food, particularly when people use intensive agricultural techniques such as artificial fertilization , irrigation and crop rotation . It is possible but more difficult to accumulate horticultural production, and so civilizations based on horticultural gardening have been very rare. Grain surpluses have been especially important because grain can be stored for a long time. Research from

7175-543: A vector to spread to humans. An example of this could be dengue fever. Urbanization has also been associated with an increased risk of asthma as well. Throughout the world, as communities transition from rural to more urban societies, the number of people affected by asthma increases. The odds of reduced rates of hospitalization and death from asthmas has decreased for children and young adults in urbanized municipalities in Brazil. This finding indicates that urbanization may have

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7350-565: A workers' town associated with the pyramid of Senusret II , and the religious city Amarna built by Akhenaten and abandoned. These sites appear planned in a highly regimented and stratified fashion, with a minimalistic grid of rooms for the workers and increasingly more elaborate housing available for higher classes. In Mesopotamia, the civilization of Sumer , followed by Assyria and Babylon , gave rise to numerous cities, governed by kings and fostered multiple languages written in cuneiform . The Phoenician trading empire, flourishing around

7525-471: A world of intensifying globalization , all cities are to varying degrees also connected globally beyond these regions. This increased influence means that cities also have significant influences on global issues , such as sustainable development , climate change , and global health . Because of these major influences on global issues, the international community has prioritized investment in sustainable cities through Sustainable Development Goal 11 . Due to

7700-478: Is a common effect of urbanization. Precipitation from rooftops, roads, parking lots and sidewalks flows to storm drains , instead of percolating into groundwater . The contaminated stormwater in the drains is typically untreated and flows to nearby streams, rivers or coastal bays. Eutrophication in water bodies is another effect large populations in cities have on the environment. When rain occurs in these large cities, it filters CO 2 and other pollutants in

7875-513: Is a large organization. Systems theory helps guard against superficial and misleading analogies in the study and description of civilizations. Systems theorists look at many types of relations between cities, including economic relations, cultural exchanges and political/diplomatic/military relations. These spheres often occur on different scales. For example, trade networks were, until the nineteenth century, much larger than either cultural spheres or political spheres. Extensive trade routes, including

8050-407: Is a non-linear development that demonstrates the varied experiences of early urbanization . The cities of Jericho , Aleppo , Byblos , Faiyum , Yerevan , Athens , Matera , Damascus , and Argos are among those laying claim to the longest continual inhabitation . Cities, characterized by population density , symbolic function, and urban planning , have existed for thousands of years. In

8225-453: Is any complex society characterized by the development of the state , social stratification , urbanization , and symbolic systems of communication beyond signed or spoken languages (namely, writing systems and graphic arts ). Civilizations include features such as agriculture , architecture , infrastructure , technological advancement , currency , taxation , regulation , and specialization of labour . Historically,

8400-436: Is believed by some archaeologists to be the oldest known town in present-day Europe. The 8.2 Kiloyear Arid Event and the 5.9 Kiloyear Inter-pluvial saw the drying out of semiarid regions and a major spread of deserts . This climate change shifted the cost-benefit ratio of endemic violence between communities, which saw the abandonment of unwalled village communities and the appearance of walled cities, seen by some as

8575-411: Is compulsory to promote a fair society. Furthermore, urbanization improves environmental eminence through superior facilities and standards in urban areas as compared to rural areas. Lastly, urbanization curbs pollution emissions by increasing innovations. In his 2009 book Whole Earth Discipline , Stewart Brand argues that the effects of urbanization are primarily positive for the environment. First,

8750-476: Is happening in the cities of the largest developing countries, may be regarded as an attempt to balance these harmful aspects of urban life while still allowing access to the large extent of shared resources. In cities, money, services, wealth and opportunities are centralized. Many rural inhabitants come to the city to seek their fortune and alter their social position. Businesses, which provide jobs and exchange capital, are more concentrated in urban areas. Whether

8925-418: Is predominantly the process by which towns and cities are formed and become larger as more people begin living and working in central areas. Although the two concepts are sometimes used interchangeably, urbanization should be distinguished from urban growth . Urbanization refers to the proportion of the total national population living in areas classified as urban, whereas urban growth strictly refers to

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9100-410: Is similar in some ways to that of Urban Planner, Jane Jacobs who argues that the five pillars of United States culture are in serious decay: community and family; higher education; the effective practice of science; taxation and government; and the self-regulation of the learned professions. The corrosion of these pillars, Jacobs argues, is linked to societal ills such as environmental crisis, racism and

9275-409: Is sometimes defined as "living in cities". Non-farmers tend to gather in cities to work and to trade. Compared with other societies, civilizations have a more complex political structure, namely the state . State societies are more stratified than other societies; there is a greater difference among the social classes. The ruling class , normally concentrated in the cities, has control over much of

9450-513: Is still clearly visible. A system of rectilinear city streets and land plots, known as the grid plan , has been used for millennia in Asia, Europe, and the Americas. The Indus Valley Civilization built Mohenjo-Daro , Harappa , and other cities on a grid pattern, using ancient principles described by Kautilya , and aligned with the compass points . The ancient Greek city of Priene exemplifies

9625-565: Is that person's broadest cultural identity. It is precisely the protection of this cultural identity that is becoming increasingly important nationally and internationally. According to international law, the United Nations and UNESCO try to set up and enforce relevant rules. The aim is to preserve the cultural heritage of humanity and also the cultural identity, especially in the case of war and armed conflict. According to Karl von Habsburg , President of Blue Shield International ,

9800-442: Is the key indicator in determining the extent of a civilization. David Wilkinson has proposed that economic and military-diplomatic integration of the Mesopotamian and Egyptian civilizations resulted in the creation of what he calls the "Central Civilization" around 1500 BCE. Central Civilization later expanded to include the entire Middle East and Europe, and then expanded to a global scale with European colonization, integrating

9975-418: Is the most urban continent, with four-fifths of its population living in cities, including one-fifth of the population said to live in shantytowns ( favelas , poblaciones callampas , etc.). Batam , Indonesia , Mogadishu , Somalia , Xiamen , China , and Niamey , Niger , are considered among the world's fastest-growing cities, with annual growth rates of 5–8%. In general, the more developed countries of

10150-404: Is whether this is due to agglomeration effects or whether cities simply attract those who are more productive. Urban geographers have shown that there exists a large productivity gain due to locating in dense agglomerations. It is thus possible that agents locate in cities in order to benefit from these agglomeration effects. The dominant conurbation (s) of a country can get more benefits from

10325-566: Is why the most basic definition of the word civilization is 'a society made up of cities.'" The earliest emergence of civilizations is generally connected with the final stages of the Neolithic Revolution in West Asia , culminating in the relatively rapid process of urban revolution and state formation , a political development associated with the appearance of a governing elite. The English word civilization comes from

10500-579: The Journal of Political Economy contradicts the surplus model. It postulates that horticultural gardening was more productive than cereal farming. However, only cereal farming produced civilization because of the appropriability of yearly harvest. Rural populations that could only grow cereals could be taxed allowing for a taxing elite and urban development. This also had a negative effect on rural population, increasing relative agricultural output per farmer. Farming efficiency created food surplus and sustained

10675-430: The 2011 Thailand floods and 2007 Jakarta flood . Urban areas are also far more prone to violence , drugs , and other urban social problems. In the United States, industrialization of agriculture has negatively affected the economy of small and middle-sized farms and strongly reduced the size of the rural labour market. – Madhura Swaminathan, economist at Kolkata's Indian Statistical Institute Particularly in

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10850-824: The Neolithic and Mesolithic stage of the cultures of many of the peoples they encountered. Nonetheless, developments in the Neolithic stage, such as agriculture and sedentary settlement, were critical to the development of modern conceptions of civilization. The Natufian culture in the Levantine corridor provides the earliest case of a Neolithic Revolution, with the planting of cereal crops attested from c. 11,000 BCE. The earliest neolithic technology and lifestyle were established first in Western Asia (for example at Göbekli Tepe , from about 9,130 BCE), later in

11025-660: The Overseas Development Institute have proposed policies that encourage labour-intensive to make use of the migration of less skilled workers. One problem these migrant workers are involved with is the growth of slums . In many cases, the rural-urban unskilled migrant workers are attracted by economic opportunities in cities. Unfortunately, they cannot find a job and or pay for houses in urban areas and have to live in slums. Urban problems, along with developments in their facilities, are also fuelling suburb development trends in less developed nations, though

11200-601: The Republic of Venice and the Republic of Genoa . In Northern Europe, cities including Lübeck and Bruges formed the Hanseatic League for collective defense and commerce. Their power was later challenged and eclipsed by the Dutch commercial cities of Ghent , Ypres , and Amsterdam . Similar phenomena existed elsewhere, as in the case of Sakai , which enjoyed considerable autonomy in late medieval Japan. In

11375-573: The Royal Cemetery at Ur is suggested was traded northwards from Mozambique. Many theorists argue that the entire world has already become integrated into a single " world system ", a process known as globalization . Different civilizations and societies all over the globe are economically, politically, and even culturally interdependent in many ways. There is debate over when this integration began, and what sort of integration – cultural, technological, economic, political, or military-diplomatic –

11550-658: The Silk Road through Central Asia and Indian Ocean sea routes linking the Roman Empire , Persian Empire , India and China, were well established 2000 years ago when these civilizations scarcely shared any political, diplomatic, military, or cultural relations. The first evidence of such long-distance trade is in the ancient world . During the Uruk period , Guillermo Algaze has argued that trade relations connected Egypt, Mesopotamia, Iran and Afghanistan. Resin found later in

11725-879: The United Nations ... largely for the purpose of international statistical comparison". The word city and the related civilization come from the Latin root civitas , originally meaning 'citizenship' or 'community member' and eventually coming to correspond with urbs , meaning 'city' in a more physical sense. The Roman civitas was closely linked with the Greek polis —another common root appearing in English words such as metropolis . In toponymic terminology, names of individual cities and towns are called astionyms (from Ancient Greek ἄστυ 'city or town' and ὄνομα 'name'). Urban geography deals both with cities in their larger context and with their internal structure. Cities are estimated to cover about 3% of

11900-567: The Yellow River and Yangtze basins in China (for example the Peiligang and Pengtoushan cultures), and from these cores spread across Eurasia. Mesopotamia is the site of the earliest civilizations developing from 7,400 years ago. This area has been evaluated by Beverley Milton-Edwards as having "inspired some of the most important developments in human history including the invention of

12075-513: The absolute number of people living in those areas. It is predicted that by 2050 about 64% of the developing world and 86% of the developed world will be urbanized. This is predicted to generate artificial scarcities of land, lack of drinking water, playgrounds and so on for most urban dwellers. The predicted urban population growth is equivalent to approximately 3 billion urbanites by 2050, much of which will occur in Africa and Asia . Notably,

12250-502: The city centre for the working class . Urbanization rapidly spread across the Western world and, since the 1950s, it has begun to take hold in the developing world as well. At the turn of the 20th century, just 15% of the world population lived in cities. According to the UN , the year 2007 witnessed the turning point when more than 50% of the world population were living in cities, for

12425-728: The civilization of Djenne-Djenno was likely established by the Mande progenitors of the Bozo people . Their habitation of the site spanned the period from 3rd century BCE to 13th century CE. Archaeological evidence from Jenné-Jeno, specifically the presence of non-West African glass beads dated from the third century BCE to the fourth century CE, indicates that pre-Arabic trade contacts probably existed between Jenné-Jeno and North Africa. Additionally, other early urban centers in West Africa, dated to around 500 CE, include Awdaghust , Kumbi Saleh ,

12600-517: The commune ( in France and Chile ; or comune in Italy). Urbanization Urbanization (or urbanisation in British English ) is the population shift from rural to urban areas , the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. It can also mean population growth in urban areas instead of rural ones. It

12775-427: The government workers . (This arrangement contrasts with the more typically horizontal relationships in a tribe or village accomplishing common goals through informal agreements between neighbors, or the leadership of a chief.) The governments may be based on heredity, religion, military power, work systems such as canal-building, food distribution, land-ownership, agriculture, commerce, manufacturing, finance, or

12950-534: The knowledge economy . A new smart city paradigm, supported by institutions such as the RAND Corporation and IBM , is bringing computerized surveillance , data analysis, and governance to bear on cities and city dwellers. Some companies are building brand-new master-planned cities from scratch on greenfield sites. Urbanization is the process of migration from rural to urban areas, driven by various political, economic, and cultural factors. Until

13125-561: The service economy and public-private partnerships , with concomitant gentrification , uneven revitalization efforts , and selective cultural development. Under the Great Leap Forward and subsequent five-year plans continuing today, China has undergone concomitant urbanization and industrialization and become the world's leading manufacturer . Amidst these economic changes, high technology and instantaneous telecommunication enable select cities to become centers of

13300-677: The silurian hypothesis , however, considers whether it would "be possible to detect an industrial civilization in the geological record" given the paucity of geological information about eras before the quaternary . Astronomers speculate about the existence of communicating with intelligent civilizations within and beyond the Milky Way galaxy, usually using variants of the Drake equation . They conduct searches for such intelligences – such as for technological traces, called " technosignatures ". The proposed proto-scientific field " xenoarchaeology "

13475-408: The sociological process of rationalization . Urbanization can be seen as a specific condition at a set time (e.g. the proportion of total population or area in cities or towns), or as an increase in that condition over time. Therefore, urbanization can be quantified either in terms of the level of urban development relative to the overall population, or as the rate at which the urban proportion of

13650-405: The working class out of the market, including officials and employees of the local districts. For example, Eric Hobsbawm 's book The age of revolution: 1789–1848 (published 1962 and 2005) chapter 11, stated "Urban development in our period was a gigantic process of class segregation, which pushed the new labouring poor into great morasses of misery outside the centres of government, business, and

13825-532: The " Global North " remain more urbanized than the less developed countries of the " Global South "—but the difference continues to shrink because urbanization is happening faster in the latter group. Asia is home to by far the greatest absolute number of city-dwellers: over two billion and counting. The UN predicts an additional 2.5 billion city dwellers (and 300 million fewer country dwellers) worldwide by 2050, with 90% of urban population expansion occurring in Asia and Africa. Megacities , cities with populations in

14000-535: The "functional definition", a city is not distinguished by size alone, but also by the role it plays within a larger political context. Cities serve as administrative, commercial, religious, and cultural hubs for their larger surrounding areas. The presence of a literate elite is often associated with cities because of the cultural diversities present in a city. A typical city has professional administrators , regulations, and some form of taxation (food and other necessities or means to trade for them) to support

14175-646: The "true clash of civilizations" between the Muslim world and the West is caused by the Muslim rejection of the West's more liberal sexual values, rather than a difference in political ideology, although they note that this lack of tolerance is likely to lead to an eventual rejection of (true) democracy. In Identity and Violence Sen questions if people should be divided along the lines of a supposed "civilization", defined by religion and culture only. He argues that this ignores

14350-526: The 1760s, again from French. The first known use in French is in 1757, by Victor de Riqueti, marquis de Mirabeau , and the first use in English is attributed to Adam Ferguson , who in his 1767 Essay on the History of Civil Society wrote, "Not only the individual advances from infancy to manhood but the species itself from rudeness to civilisation". The word was therefore opposed to barbarism or rudeness, in

14525-477: The 18th century), Ile-Ifẹ̀ (70,000 to 105,000 inhabitants in the 14th and 15th centuries), Niani (50,000 inhabitants in 1400 AD) and Timbuktu (100,000 inhabitants in 1450 AD). In the West, nation-states became the dominant unit of political organization following the Peace of Westphalia in the seventeenth century. Western Europe's larger capitals (London and Paris) benefited from the growth of commerce following

14700-417: The 18th century, an equilibrium existed between the rural agricultural population and towns featuring markets and small-scale manufacturing. With the agricultural and industrial revolutions urban population began its unprecedented growth, both through migration and demographic expansion . In England , the proportion of the population living in cities jumped from 17% in 1801 to 72% in 1891. In 1900, 15% of

14875-503: The 18th century, civilization was not always seen as an improvement. One historically important distinction between culture and civilization is from the writings of Rousseau , particularly his work about education, Emile . Here, civilization, being more rational and socially driven, is not fully in accord with human nature , and "human wholeness is achievable only through the recovery of or approximation to an original discursive or pre-rational natural unity" (see noble savage ). From this,

15050-460: The 19th century were taller than their "civilized" American and European counterparts. The average stature of a population is a good measurement of the adequacy of its access to necessities, especially food, and its freedom from disease. Writing , developed first by people in Sumer , is considered a hallmark of civilization and "appears to accompany the rise of complex administrative bureaucracies or

15225-717: The 30th and 18th centuries BC. Mesoamerica saw the rise of early urbanism in several cultural regions, beginning with the Olmec and spreading to the Preclassic Maya , the Zapotec of Oaxaca, and Teotihuacan in central Mexico. Later cultures such as the Aztec , Andean civilizations , Mayan , Mississippians , and Pueblo peoples drew on these earlier urban traditions. Many of their ancient cities continue to be inhabited, including major metropolitan cities such as Mexico City , in

15400-748: The 9th through the end of the 12th century, Constantinople , the capital of the Eastern Roman Empire , was the largest and wealthiest city in Europe, with a population approaching 1 million. The Ottoman Empire gradually gained control over many cities in the Mediterranean area, including Constantinople in 1453 . In the Holy Roman Empire , beginning in the 12th century, free imperial cities such as Nuremberg , Strasbourg , Frankfurt , Basel , Zürich , and Nijmegen became

15575-600: The Americas, Australia, China and Japan by the nineteenth century. According to Wilkinson, civilizations can be culturally heterogeneous, like the Central Civilization, or homogeneous, like the Japanese civilization. What Huntington calls the "clash of civilizations" might be characterized by Wilkinson as a clash of cultural spheres within a single global civilization. Others point to the Crusading movement as

15750-566: The Andes, the first urban centers developed in the Norte Chico civilization , Chavin and Moche cultures, followed by major cities in the Huari , Chimu , and Inca cultures. The Norte Chico civilization included as many as 30 major population centers in what is now the Norte Chico region of north-central coastal Peru . It is the oldest known civilization in the Americas, flourishing between

15925-605: The Earth's atmosphere as emissions increase with the rise in urban development. In fact, the ocean absorbs a quarter of the CO 2 produced by humans. This helps to lessen the harmful effects of greenhouse gases. But it also makes the ocean more acidic. A drop in pH the prevents the proper formation of calcium carbonate, which sea creatures need to build or keep shells or skeletons. This is especially true for many species of molluscs and coral. However, some species have been able to thrive in

16100-515: The European colonization of the Americas and Australia. The term "primitive," though once used in anthropology , has now been largely condemned by anthropologists because of its derogatory connotations and because it implies that the cultures it refers to are relics of a past time that do not change or progress. Because of this, societies regarding themselves as "civilized" have sometimes sought to dominate and assimilate "uncivilized" cultures into

16275-423: The French civilisé ('civilized'), from Latin : civilis ('civil'), related to civis ('citizen') and civitas ('city'). The fundamental treatise is Norbert Elias 's The Civilizing Process (1939), which traces social mores from medieval courtly society to the early modern period . In The Philosophy of Civilization (1923), Albert Schweitzer outlines two opinions: one purely material and

16450-497: The German word Kultur , "culture", for what many call a "civilization". Spengler believed a civilization's coherence is based on a single primary cultural symbol. Cultures experience cycles of birth, life, decline, and death, often supplanted by a potent new culture, formed around a compelling new cultural symbol. Spengler states civilization is the beginning of the decline of a culture as "the most external and artificial states of which

16625-700: The United Nations has also recently projected that nearly all global population growth from 2017 to 2030 will be by cities, with about 1.1 billion new urbanites over the next 10 years. In the long term, urbanization is expected to significantly impact the quality of life in negative ways. Urbanization is relevant to a range of disciplines, including urban planning , geography , sociology , architecture , economics , education , statistics , and public health . The phenomenon has been closely linked to globalization , modernization , industrialization , marketization , administrative/institutional power , and

16800-582: The United States now have an increased risk of morbidity due to asthma in comparison to other low-income children in the United States. In addition, children with croup living in urban areas have higher hazard ratios for asthma than similar children living in rural areas. Researchers suggest that this difference in hazard ratios is due to the higher levels of air pollution and exposure to environmental allergens found in urban areas. Exposure to elevated levels of ambient air pollutants such as nitrogen dioxide (NO 2 ), carbon monoxide (CO), and particulate matter with

16975-534: The active pursuit of progress characteristic of the Age of Enlightenment . In the late 1700s and early 1800s, during the French Revolution , "civilization" was used in the singular , never in the plural, and meant the progress of humanity as a whole. This is still the case in French. The use of "civilizations" as a countable noun was in occasional use in the 19th century, but has become much more common in

17150-509: The affected neighbourhoods also had a high proportion of children and new births. In children, urbanization is associated with a lower risk of under-nutrition but a higher risk of being overweight . Urbanization has also been linked to the spread of communicable diseases, which can spread more rapidly in the favourable environment with more people living in a smaller area. Such diseases can be respiratory infections and gastrointestinal infections. Other infections could be infections, which need

17325-415: The aforementioned chemicals. In these ideal conditions, they choke surface water, blocking sunlight and nutrients from other life forms. Overgrowth of algal blooms makes water worse overall and disrupts the natural balance of aquatic ecosystems. Furthermore, as algal blooms die, CO 2 is produced. This makes the ocean more acidic, a process called acidification. The ocean's surface can absorb CO 2 from

17500-408: The air onto the ground. These chemicals are washed directly into rivers, streams, and oceans, making water worse and damaging ecosystems in them. Eutrophication is a process which causes low levels of oxygen in water and algal blooms that may harm aquatic life. Harmful algal blooms make dangerous toxins. They live best in nitrogen- and phosphorus-rich places which include the oceans contaminated by

17675-458: The amount of energy a civilization is able to harness. The scale is only hypothetical, but it puts energy consumption in a cosmic perspective. The Kardashev scale makes provisions for civilizations far more technologically advanced than any currently known to exist. The current scientific consensus is that human beings are the only animal species with the cognitive ability to create civilizations that has emerged on Earth. A recent thought experiment,

17850-533: The ancient capital of Ghana, and Maranda , a center located on a trade route between Egypt and Gao. The dissolution of the Roman Empire in the West was connected with profound changes in urban fabric of western Europe. In places where Roman administration quickly weakened urbanism went through a profound crisis, even if it continued to remain an important symbolic factor. In regions like Italy or Spain cities diminished in size but nevertheless continued to play

18025-462: The athletic, artistic, spiritual, and political life of the polis. Rome was the first city that surpassed one million inhabitants. Under the authority of its empire , Rome transformed and founded many cities ( Colonia ), and with them brought its principles of urban architecture, design, and society. In the ancient Americas , early urban traditions developed in the Andes and Mesoamerica . In

18200-406: The benefit of mitigating the urban heat island effect, especially in cities that are in warmer climates. These spaces prevent carbon imbalances, extreme habitat losses, electricity and water consumption, and human health risks. The urban structure generally follows one or more basic patterns: geomorphic, radial, concentric, rectilinear, and curvilinear. The physical environment generally constrains

18375-450: The birth rate of new urban dwellers falls immediately to replacement rate and keeps falling, reducing environmental stresses caused by population growth. Secondly, emigration from rural areas reduces destructive subsistence farming techniques, such as improperly implemented slash and burn agriculture. Alex Steffen also speaks of the environmental benefits of increasing the urbanization level in "Carbon Zero: Imagining Cities that can save

18550-573: The capital, are normal cities instead. A conurbation's dominance can be measured by output, wealth, and especially population, each expressed as a percentage of the entire country's. Greater Seoul is one conurbation that dominates South Korea. It is home to 50% of the entire national population. Though Greater Busan-Ulsan (15%, 8 million) and Greater Osaka (14%, 18 million) dominate their respective countries, their populations are moving to their even more dominant rivals, Seoul and Tokyo respectively. As cities develop, costs will skyrocket. This often takes

18725-532: The collapse of civilization. Some focus on historical examples, and others on general theory. According to political scientist Samuel P. Huntington , the 21st century will be characterized by a clash of civilizations , which he believes will replace the conflicts between nation-states and ideologies that were prominent in the 19th and 20th centuries. However, this viewpoint been strongly challenged by others such as Edward Said , Muhammed Asadi and Amartya Sen . Ronald Inglehart and Pippa Norris have argued that

18900-798: The combination of ill-health and poverty entrenches disadvantage over time." Many of the urban poor have difficulty accessing health services due to their inability to pay for them; so they resort to less qualified and unregulated providers. While urbanization is associated with improvements in public hygiene , sanitation and access to health care , it also entails changes in occupational, dietary , and exercise patterns. It can have mixed effects on health patterns, alleviating some problems, and accentuating others. Traditionally, rural populations have tended to eat plant-based diets rich in grains, fruits and vegetables, and with low fat content. However, rural people migrating to urban areas often shift towards diets that rely more on processed foods characterized by

19075-741: The connection of areas and allow for easier movement around urbanized regions. Depending on the various factors, such as level of urbanization, both increases or decreases in "species richness" can be seen. This means that urbanization may be detrimental to one species but also help facilitate the growth of others. In instances of housing and building development, many times vegetation is completely removed immediately in order to make it easier and less expensive for construction to occur, thereby obliterating any native species in that area. Habitat fragmentation can filter species with limited dispersal capacity. For example, aquatic insects are found to have lower species richness in urban landscapes. The more urbanized

19250-480: The conquest state". Traders and bureaucrats relied on writing to keep accurate records. Like money, the writing was necessitated by the size of the population of a city and the complexity of its commerce among people who are not all personally acquainted with each other. However, writing is not always necessary for civilization, as shown by the Inca civilization of the Andes, which did not use writing at all but except for

19425-609: The conventional view, civilization and the city were both followed by the development of agriculture , which enabled the production of surplus food and thus a social division of labor (with concomitant social stratification ) and trade . Early cities often featured granaries , sometimes within a temple. A minority viewpoint considers that cities may have arisen without agriculture, due to alternative means of subsistence (fishing), to use as communal seasonal shelters, to their value as bases for defensive and offensive military organization, or to their inherent economic function. Cities played

19600-597: The destruction of cultural assets is also part of psychological warfare. The target of the attack is often the opponent's cultural identity, which is why symbolic cultural assets become a main target. It is also intended to destroy the particularly sensitive cultural memory (museums, archives, monuments, etc.), the grown cultural diversity, and the economic basis (such as tourism) of a state, region or community. Many historians have focused on these broad cultural spheres and have treated civilizations as discrete units. Early twentieth-century philosopher Oswald Spengler , uses

19775-550: The developing world, conflict over land rights due to the effects of globalization has led to less politically powerful groups, such as farmers, losing or forfeiting their land, resulting in obligatory migration into cities. In China, where land acquisition measures are forceful, there has been far more extensive and rapid urbanization (54%) than in India (36%), where peasants form militant groups (e.g. Naxalites ) to oppose such efforts. Obligatory and unplanned migration often results in

19950-587: The developing world, urbanization does not translate into a significant increase in life expectancy . Rapid urbanization has led to increased mortality from non-communicable diseases associated with lifestyle, including cancer and heart disease . Differences in mortality from contagious diseases vary depending on the particular disease and location. Urban health levels are on average better in comparison to rural areas. However, residents in poor urban areas such as slums and informal settlements suffer "disproportionately from disease, injury, premature death, and

20125-634: The development of state structures, in which power was further monopolized by an elite ruling class who practiced human sacrifice. Towards the end of the Neolithic period, various elitist Chalcolithic civilizations began to rise in various "cradles" from around 3600 BCE beginning with Mesopotamia , expanding into large-scale kingdoms and empires in the course of the Bronze Age ( Akkadian Empire , Indus Valley Civilization , Old Kingdom of Egypt , Neo-Sumerian Empire , Middle Assyrian Empire , Babylonian Empire , Hittite Empire , and to some degree

20300-746: The displacement of Indigenous Australians by observing that the land appeared uncultivated and wild, which to them reflected that the inhabitants were not civilized enough to "improve" it. The behaviors and modes of subsistence that characterize civilization have been spread by colonization , invasion , religious conversion , the extension of bureaucratic control and trade , and by the introduction of new technologies to cultures that did not previously have them. Though aspects of culture associated with civilization can be freely adopted through contact between cultures, since early modern times Eurocentric ideals of "civilization" have been widely imposed upon cultures through coercion and dominance. These ideals complemented

20475-409: The early Iron Age , contemporary civilizations developed money as a medium of exchange for increasingly complex transactions. In a village, the potter makes a pot for the brewer and the brewer compensates the potter by giving him a certain amount of beer. In a city, the potter may need a new roof, the roofer may need new shoes, the cobbler may need new horseshoes, the blacksmith may need a new coat and

20650-666: The efficiency of transportation and the smaller land consumption , dense cities hold the potential to have a smaller ecological footprint per inhabitant than more sparsely populated areas. Therefore, compact cities are often referred to as a crucial element in fighting climate change. However, this concentration can also have some significant negative consequences, such as forming urban heat islands , concentrating pollution , and stressing water supplies and other resources. A city can be distinguished from other human settlements by its relatively great size, but also by its functions and its special symbolic status , which may be conferred by

20825-484: The emergence of an Atlantic trade. However, most towns remained small. During the Spanish colonization of the Americas, the old Roman city concept was extensively used. Cities were founded in the middle of the newly conquered territories and were bound to several laws regarding administration, finances, and urbanism. The growth of the modern industry from the late 18th century onward led to massive urbanization and

21000-482: The energy of slaves to plant crops, clothe emperors, and build cities" and considers slavery to be a common feature of pre-modern civilizations. All civilizations have depended on agriculture for subsistence, with the possible exception of some early civilizations in Peru which may have depended upon maritime resources. The traditional "surplus model" postulates that cereal farming results in accumulated storage and

21175-509: The face of increased urbanization is at the centre of international policy in Sustainable Development Goal 11 "Sustainable cities and communities." Urbanization is not merely a modern phenomenon, but a rapid and historic transformation of human social roots on a global scale, whereby predominantly rural culture is being rapidly replaced by predominantly urban culture . The first major change in settlement patterns

21350-438: The failure of a "creative minority", through moral or religious decline, to meet some important challenge, rather than mere economic or environmental causes. Samuel P. Huntington defines civilization as "the highest cultural grouping of people and the broadest level of cultural identity people have short of that which distinguishes humans from other species". Another group of theorists, making use of systems theory , looks at

21525-807: The first millennium AD, the Khmer capital of Angkor in Cambodia grew into the most extensive preindustrial settlement in the world by area, covering over 1,000 km and possibly supporting up to one million people. West Africa already had cities before the Common Era , but the consolidation of Trans-Saharan trade in the Middle Ages multiplied the number of cities in the region, as well as making some of them very populous, notably Gao (72,000 inhabitants in 800 AD), Oyo-Ile (50,000 inhabitants in 1400 AD, and may have reached up to 140,000 inhabitants in

21700-485: The first step in globalization. The more conventional viewpoint is that networks of societies have expanded and shrunk since ancient times , and that the current globalized economy and culture is a product of recent European colonialism . The notion of human history as a succession of "civilizations" is an entirely modern one. In the European Age of Discovery , emerging Modernity was put into stark contrast with

21875-451: The first time in human history . Yale University in June 2016 published urbanization data from the time period 3700 BC to 2000 AD, the data was used to make a video showing the development of cities on the world during the time period. The origins and spread of urban centres around the world were also mapped by archaeologists . Urbanization occurs either organically or planned as

22050-464: The first true city, innovating many characteristics for cities to follow, with its name attributed to the Uruk period . In the fourth and third millennium BC , complex civilizations flourished in the river valleys of Mesopotamia , India , China , and Egypt . Excavations in these areas have found the ruins of cities geared variously towards trade, politics, or religion. Some had large, dense populations , but others carried out urban activities in

22225-485: The food surplus through decreasing rural population growth in favour of urban growth. Suitability of highly productive roots and tubers was in fact a curse of plenty, which prevented the emergence of states and impeded economic development. A surplus of food permits some people to do things besides producing food for a living: early civilizations included soldiers , artisans , priests and priestesses, and other people with specialized careers. A surplus of food results in

22400-439: The form in which a city is built. If located on a mountainside, urban structures may rely on terraces and winding roads. It may be adapted to its means of subsistence (e.g. agriculture or fishing). And it may be set up for optimal defense given the surrounding landscape. Beyond these "geomorphic" features, cities can develop internal patterns, due to natural growth or to city planning . In a radial structure, main roads converge on

22575-409: The growing gulf between rich and poor. Cultural critic and author Derrick Jensen argues that modern civilization is directed towards the domination of the environment and humanity itself in an intrinsically harmful, unsustainable, and self-destructive fashion. Defending his definition both linguistically and historically, he defines civilization as "a culture... that both leads to and emerges from

22750-489: The growing population of urban regions, according to UN experts, will strain basic sanitation systems and health care, and potentially cause a humanitarian and environmental disaster. Urban heat islands have become a growing concern over the years. An urban heat island is formed when industrial areas absorb and retain heat. Much of the solar energy reaching rural areas is used to evaporate water from plants and soil. In cities, there are less vegetation and exposed soil. Most of

22925-671: The growth of cities", with "cities" defined as "people living more or less permanently in one place in densities high enough to require the routine importation of food and other necessities of life". This need for civilizations to import ever more resources, he argues, stems from their over-exploitation and diminution of their own local resources. Therefore, civilizations inherently adopt imperialist and expansionist policies and, to maintain these, highly militarized, hierarchically structured, and coercion-based cultures and lifestyles. The Kardashev scale classifies civilizations based on their level of technological advancement, specifically measured by

23100-611: The inconvenience of trips across them frequently combine to make marketplace competition harsher in cities than in rural areas. In many developing countries where economies are growing, the growth is often random and based on a small number of industries. Youths in these nations lack access to financial services and business advisory services, cannot get credit to start a business, and have no entrepreneurial skills. Therefore, they cannot seize opportunities in these industries. Making sure adolescents have access to excellent schools and infrastructure to work in such industries and improve schools

23275-418: The land surface of the Earth. Town siting has varied through history according to natural, technological, economic, and military contexts. Access to water has long been a major factor in city placement and growth, and despite exceptions enabled by the advent of rail transport in the nineteenth century, through the present most of the world's urban population lives near the coast or on a river. Urban areas as

23450-408: The land. Because a percentage of people in civilizations do not grow their own food, they must trade their goods and services for food in a market system, or receive food through the levy of tribute , redistributive taxation , tariffs or tithes from the food producing segment of the population. Early human cultures functioned through a gift economy supplemented by limited barter systems. By

23625-543: The later 20th century, sometimes just meaning culture (itself in origin an uncountable noun, made countable in the context of ethnography ). Only in this generalized sense does it become possible to speak of a "medieval civilization", which in Elias's sense would have been an oxymoron. Using the terms "civilization" and "culture" as equivalents are controversial and generally rejected so that for example some types of culture are not normally described as civilizations. Already in

23800-473: The living standards of the populace. For example, although the Middle Ages is often portrayed as an era of decline from the Roman Empire, studies have shown that the average stature of males in the Middle Ages (c. 500 to 1500 CE) was greater than it was for males during the preceding Roman Empire and the succeeding Early Modern Period (c. 1500 to 1800 CE). Also, the Plains Indians of North America in

23975-518: The many others identities that make up people and leads to a focus on differences. Cultural Historian Morris Berman argues in Dark Ages America: the End of Empire that in the corporate consumerist United States, the very factors that once propelled it to greatness―extreme individualism, territorial and economic expansion, and the pursuit of material wealth―have pushed the United States across

24150-494: The multi-millions, have proliferated into the dozens, arising especially in Asia, Africa, and Latin America. Economic globalization fuels the growth of these cities, as new torrents of foreign capital arrange for rapid industrialization, as well as the relocation of major businesses from Europe and North America, attracting immigrants from near and far. A deep gulf divides the rich and poor in these cities, which usually contain

24325-690: The needs of commuters , and sometimes edge cities characterized by a degree of economic and political independence. (In the US these are grouped into metropolitan statistical areas for purposes of demography and marketing .) Some cities are now part of a continuous urban landscape called urban agglomeration , conurbation , or megalopolis (exemplified by the BosWash corridor of the Northeastern United States .) The emergence of cities from proto-urban settlements , such as Çatalhöyük ,

24500-417: The new industrial cities like Manchester and Birmingham which were experiencing a boom in commerce, trade, and industry. Growing trade around the world also allowed cereals to be imported from North America and refrigerated meat from Australasia and South America . Spatially, cities also expanded due to the development of public transport systems , which facilitated commutes of longer distances to

24675-565: The newly specialized residential areas of the bourgeoisie. The almost universal European division into a 'good' west end and a 'poor' east end of large cities developed in this period." This is probably caused by the south-west wind which carries coal smoke and other pollutants down, making the western edges of towns better than the eastern ones. Similar problems now affect less developed countries, as rapid development of cities makes inequality worse. The drive to grow quickly and be efficient can lead to less fair urban development. Think tanks such as

24850-500: The onset of the British Agricultural Revolution and Industrial Revolution in the late 18th century, this relationship was finally broken and an unprecedented growth in urban population took place over the course of the 19th century, both through continued migration from the countryside and due to the tremendous demographic expansion that occurred at that time. In England and Wales , the proportion of

25025-593: The opportunity to join, develop, and seek out social communities. Urbanization also creates opportunities for women that are not available in rural areas. This creates a gender-related transformation where women are engaged in paid employment and have access to education. This may cause fertility to decline. However, women are sometimes still at a disadvantage due to their unequal position in the labour market, their inability to secure assets independently from male relatives and exposure to violence. People in cities are more productive than in rural areas. An important question

25200-475: The other material and ethical . He said that the world crisis was from humanity losing the ethical idea of civilization, "the sum total of all progress made by man in every sphere of action and from every point of view in so far as the progress helps towards the spiritual perfecting of individuals as the progress of all progress". Related words like "civility" developed in the mid-16th century. The abstract noun "civilization", meaning "civilized condition", came in

25375-552: The planet",. However, existing infrastructure and city planning practices are not sustainable. In July 2013 a report issued by the United Nations Department of Economic and Social Affairs warned that with 2.4 billion more people by 2050, the amount of food produced will have to increase by 70%, straining food resources, especially in countries already facing food insecurity due to changing environmental conditions. The mix of changing environmental conditions and

25550-492: The population is increasing. Urbanization creates enormous social, economic and environmental challenges, which provide an opportunity for sustainability with the "potential to use resources much less or more efficiently, to create more sustainable land use and to protect the biodiversity of natural ecosystems." However, current urbanization trends have shown that massive urbanization has led to unsustainable ways of living. Developing urban resilience and urban sustainability in

25725-687: The population living in cities with more than 20,000 people jumped from 17% in 1801 to 54% in 1891. Moreover, and adopting a broader definition of urbanization, while the urbanized population in England and Wales represented 72% of the total in 1891, for other countries the figure was 37% in France , 41% in Prussia and 28% in the United States . As labourers were freed up from working the land due to higher agricultural productivity they converged on

25900-498: The public as well as forms of public land such as public domain and the commons . Western philosophy since the time of the Greek agora has considered physical public space as the substrate of the symbolic public sphere . Public art adorns (or disfigures) public spaces. Parks and other natural sites within cities provide residents with relief from the hardness and regularity of typical built environments . Urban green spaces are another component of public space that provides

26075-498: The rapid development of hierarchies , and the use of human sacrifice . The civilized urban revolution in turn was dependent upon the development of sedentism , the domestication of grains, plants and animals, the permanence of settlements and development of lifestyles that facilitated economies of scale and accumulation of surplus production by particular social sectors. The transition from complex cultures to civilizations , while still disputed, seems to be associated with

26250-546: The rapid growth of slums. This is also similar to areas of violent conflict, where people are driven off their land due to violence. Cities offer a larger variety of services, including specialist services not found in rural areas. These services require workers, resulting in more numerous and varied job opportunities. Elderly people may be forced to move to cities where there are doctors and hospitals that can cater to their health needs. Varied and high-quality educational opportunities are another factor in urban migration, as well as

26425-627: The realms of politics or religion without having large associated populations. Among the early Old World cities, Mohenjo-daro of the Indus Valley civilization in present-day Pakistan , existing from about 2600 BC, was one of the largest, with a population of 50,000 or more and a sophisticated sanitation system . China's planned cities were constructed according to sacred principles to act as celestial microcosms . The Ancient Egyptian cities known physically by archaeologists are not extensive. They include (known by their Arab names) El Lahun ,

26600-515: The relative overall quality of life is very subjective, and may certainly surpass that of the city. Farm living has always been susceptible to unpredictable environmental conditions, and in times of drought , flood or pestilence, survival may become extremely problematic. – Iam Thongdee, Professor of Humanities, Mahidol University in Bangkok In a New York Times article concerning the acute migration away from farming in Thailand, life as

26775-809: The rise of new great cities, first in Europe and then in other regions, as new opportunities brought huge numbers of migrants from rural communities into urban areas. England led the way as London became the capital of a world empire and cities across the country grew in locations strategic for manufacturing . In the United States from 1860 to 1910, the introduction of railroads reduced transportation costs, and large manufacturing centers began to emerge, fueling migration from rural to city areas. Some industrialized cities were confronted with health challenges associated with overcrowding , occupational hazards of industry, contaminated water and air, poor sanitation , and communicable diseases such as typhoid and cholera . Factories and slums emerged as regular features of

26950-696: The same location as Tenochtitlan ; while ancient continuously inhabited Pueblos are near modern urban areas in New Mexico , such as Acoma Pueblo near the Albuquerque metropolitan area and Taos Pueblo near Taos ; while others like Lima are located nearby ancient Peruvian sites such as Pachacamac . From 1600 BC, Dhar Tichitt , in the south of present-day Mauritania , presented characteristics suggestive of an incipient form of urbanism. The second place to show urban characteristics in West Africa

27125-532: The same things cities offer, attracting the rural population and urban and suburban populations from other cities. Dominant conurbations are quite often disproportionately large cities , but do not have to be. For instance Greater Manila is a conurbation instead of a city. Its total population of 20 million (over 20% national population) make it a primate city, but Quezon City (2.7 million), the largest municipality in Greater Manila, and Manila (1.6 million),

27300-518: The source is trade or tourism, it is also through the ports or banking systems, commonly located in cities, that foreign money flows into a country. Many people move into cities for economic opportunities, but this does not fully explain the very high recent urbanization rates in places like China and India. Rural flight is a contributing factor to urbanization. In rural areas, often on small family farms or collective farms in villages, it has historically been difficult to access manufactured goods, though

27475-652: The sun's energy is instead absorbed by buildings and asphalt; leading to higher surface temperatures. Vehicles, factories, and heating and cooling units in factories and homes release even more heat. As a result, cities are often 1 to 3 °C (1.8 to 5.4 °F) warmer than other areas near them. Urban heat islands also make the soil drier and absorb less carbon dioxide from emissions. A Qatar University study found that land-surface temperatures in Doha increased annually by 0.65 °C from 2002 to 2013 and 2023. Urban runoff , polluted water created by rainfall on impervious surfaces,

27650-594: The surplus and exercises its will through the actions of a government or bureaucracy . Morton Fried , a conflict theorist and Elman Service , an integration theorist, have classified human cultures based on political systems and social inequality . This system of classification contains four categories. Economically, civilizations display more complex patterns of ownership and exchange than less organized societies. Living in one place allows people to accumulate more personal possessions than nomadic people. Some people also acquire landed property , or private ownership of

27825-464: The surrounding of habitat is, the fewer species can reach the habitat. Other times, such as with birds, urbanization may allow for an increase in richness when organisms are able to adapt to the new environment. This can be seen in species that may find food while scavenging developed areas or vegetation that has been added after urbanization has occurred i.e. planted trees in city areas – Jack Finegan, Urban Programme Specialist at UN-Habitat In

28000-486: The tanner may need a new pot. These people may not be personally acquainted with one another and their needs may not occur all at the same time. A monetary system is a way of organizing these obligations to ensure that they are fulfilled. From the days of the earliest monetarized civilizations, monopolistic controls of monetary systems have benefited the social and political elites. The transition from simpler to more complex economies does not necessarily mean an improvement in

28175-788: The territorial expansions of the Elamites , Hurrians , Amorites and Ebla ). Outside the Old World, development took place independently in the Pre-Columbian Americas . Urbanization in the Caral-Supe civilization in coastal Peru began about 3500 BCE. In North America, the Olmec civilization emerged about 1200 BCE; the oldest known Mayan city, located in Guatemala, dates to about 750 BCE. and Teotihuacan in Mexico

28350-470: The third leading cause of the release of methane, causing a concern on its impact to our ozone and on the health of individuals. Accumulation of food waste causes increased fermentation, which increases the risk of rodent and bug migration. An increase in migration of disease vectors creates greater potential of disease spreading to humans. Waste management systems vary on all scales from global to local and can also be influenced by lifestyle. Waste management

28525-402: The towns where economic activity consisted primarily of trade at markets and manufactures on a small scale. Due to the primitive and relatively stagnant state of agriculture throughout this period, the ratio of rural to urban population remained at a fixed equilibrium. However, a significant increase in the percentage of the global urban population can be traced in the 1st millennium BCE. With

28700-539: The trend for core cities in said nations tends to continue to become ever denser. Development of cities is often viewed negatively, but there are positives in cutting down on transport costs, creating new job opportunities, providing education and housing, and transportation. Living in cities permits individuals and families to make use of their closeness to workplaces and diversity. While cities have more varied markets and goods than rural areas, facility congestion, domination of one group, high overhead and rental costs, and

28875-411: The turn of the first millennium BC , encompassed numerous cities extending from Tyre , Cydon , and Byblos to Carthage and Cádiz . In the following centuries, independent city-states of Greece , especially Athens , developed the polis , an association of male landowning citizens who collectively constituted the city. The agora , meaning "gathering place" or "assembly", was the center of

29050-444: The urban landscape. In the second half of the 20th century, deindustrialization (or " economic restructuring ") in the West led to poverty , homelessness , and urban decay in formerly prosperous cities. America's "Steel Belt" became a " Rust Belt " and cities such as Detroit , Michigan, and Gary, Indiana began to shrink , contrary to the global trend of massive urban expansion. Such cities have shifted with varying success into

29225-532: The volume of sewage begins to exceed manageable levels. The local government of cities takes different forms including prominently the municipality (especially in England , in the United States , India , and other British colonies ; legally, the municipal corporation ; municipio in Spain and Portugal , and, along with municipalidad , in most former parts of the Spanish and Portuguese empires) and

29400-518: The wheel, the building of the earliest cities and the development of written cursive script". Similar pre-civilized "neolithic revolutions" also began independently from 7,000 BCE in northwestern South America (the Caral-Supe civilization ) and in Mesoamerica . The Black Sea area served as a cradle of European civilization. The site of Solnitsata – a prehistoric fortified ( walled ) stone settlement (prehistoric proto-city ) (5500–4200 BCE) –

29575-519: The world's population lived in cities. The cultural appeal of cities also plays a role in attracting residents. Urbanization rapidly spread across Europe and the Americas and since the 1950s has taken hold in Asia and Africa as well. The Population Division of the United Nations Department of Economic and Social Affairs reported in 2014 that for the first time, more than half of the world population lives in cities. Latin America

29750-498: The world, incorporating earlier cultures into the technological and industrial society of the present. Civilizations are traditionally understood as ending in one of two ways; either through incorporation into another expanding civilization (e.g. as Ancient Egypt was incorporated into Hellenistic Greek, and subsequently Roman civilizations), or by collapsing and reverting to a simpler form of living, as happens in so-called Dark Ages. There have been many explanations put forward for

29925-540: Was Dia , in present-day Mali , from 800 BC. Both Dhar Tichitt and Dia were founded by the same people: the Soninke , who would later also found the Ghana Empire . Another ancient site, Jenné-Jeno , in what is today Mali , has been dated to the third century BCE. According to Roderick and Susan McIntosh, Jenné-Jeno did not fit into traditional Western conceptions of urbanity as it lacked monumental architecture and

30100-506: Was behind Nazism and German militarism and nihilism . Social scientists such as V. Gordon Childe have named a number of traits that distinguish a civilization from other kinds of society. Civilizations have been distinguished by their means of subsistence, types of livelihood , settlement patterns, forms of government , social stratification , economic systems, literacy and other cultural traits. Andrew Nikiforuk argues that "civilizations relied on shackled human muscle. It took

30275-570: Was not a primary concern until after the Industrial Revolution. As urban areas continued to grow along with the human population, proper management of solid waste became an apparent concern. To address these concerns, local governments sought solutions with the lowest economic impacts which meant implementing technical solutions at the very last stage of the process. Current waste management reflects these economically motivated solutions, such as incineration or unregulated landfills. Yet,

30450-771: Was one of the largest cities in the world in 350 CE, with a population of about 125,000. The Bronze Age collapse was followed by the Iron Age around 1200 BCE, during which a number of new civilizations emerged, culminating in a period from the 8th to the 3rd century BCE which Karl Jaspers termed the Axial Age , presented as a critical transitional phase leading to classical civilization . A major technological and cultural transition to modernity began approximately 1500 CE in Western Europe , and from this beginning new approaches to science and law spread rapidly around

30625-449: Was the accumulation of hunter-gatherers into villages many thousands of years ago. Village culture is characterized by common bloodlines, intimate relationships, and communal behaviour, whereas urban culture is characterized by distant bloodlines, unfamiliar relations, and competitive behaviour. This unprecedented movement of people is forecast to continue and intensify during the next few decades, mushrooming cities to sizes unthinkable only

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