2010 United States Census
The 2010 United States Census is the twenty-third and most recent United States national census. National Census Day, the reference day used for the census, was April 1, 2010; the census was taken via mail-in citizen self-reporting, with enumerators serving to spot-check randomly selected neighborhoods and communities. As part of a drive to increase the count's accuracy, 635,000 temporary enumerators were hired; the population of the United States was counted as 308,745,538, a 9.7% increase from the 2000 Census. This was the first census in which all states recorded a population of over half a million, as well as the first in which all 100 largest cities recorded populations of over 200,000; as required by the United States Constitution, the U. S. census has been conducted every 10 years since 1790. The 2000 U. S. Census was the previous census completed. Participation in the U. S. Census is required by law in Title 13 of the United States Code. On January 25, 2010, Census Bureau Director Robert Groves inaugurated the 2010 Census enumeration by counting World War II veteran Clifton Jackson, a resident of Noorvik, Alaska.
More than 120 million census forms were delivered by the U. S. Post Office beginning March 15, 2010; the number of forms mailed out or hand-delivered by the Census Bureau was 134 million on April 1, 2010. Although the questionnaire used April 1, 2010 as the reference date as to where a person was living, an insert dated March 15, 2010 included the following printed in bold type: "Please complete and mail back the enclosed census form today." The 2010 Census national mail participation rate was 74%. From April through July 2010, census takers visited households that did not return a form, an operation called "non-response follow-up". In December 2010, the U. S. Census Bureau delivered population information to the U. S. President for apportionment, in March 2011, complete redistricting data was delivered to states. Identifiable information will be available in 2082; the Census Bureau did not use a long form for the 2010 Census. In several previous censuses, one in six households received this long form, which asked for detailed social and economic information.
The 2010 Census used only a short form asking ten basic questions: How many people were living or staying in this house, apartment, or mobile home on April 1, 2010? Were there any additional people staying here on April 1, 2010 that you did not include in Question 1? Mark all that apply: Is this house, apartment, or mobile home – What is your telephone number? What is Person 1's name? What is Person 1's sex? What is Person 1's age and Person 1's date of birth? Is Person 1 of Hispanic, Latino, or Spanish origin? What is Person 1's race? Does Person 1 sometimes live or stay somewhere else? The form included space to repeat all of these questions for up to twelve residents total. In contrast to the 2000 census, an Internet response option was not offered, nor was the form available for download. Detailed socioeconomic information collected during past censuses will continue to be collected through the American Community Survey; the survey provides data about communities in the United States on a 1-year or 3-year cycle, depending on the size of the community, rather than once every 10 years.
A small percentage of the population on a rotating basis will receive the survey each year, no household will receive it more than once every five years. In June 2009, the U. S. Census Bureau announced. However, the final form did not contain a separate "same-sex married couple" option; when noting the relationship between household members, same-sex couples who are married could mark their spouses as being "Husband or wife", the same response given by opposite-sex married couples. An "unmarried partner" option was available for couples; the 2010 census cost $13 billion $42 per capita. Operational costs were $5.4 billion under the $7 billion budget. In December 2010 the Government Accountability Office noted that the cost of conducting the census has doubled each decade since 1970. In a detailed 2004 report to Congress, the GAO called on the Census Bureau to address cost and design issues, at that time, had estimated the 2010 Census cost to be $11 billion. In August 2010, Commerce Secretary Gary Locke announced that the census operational costs came in under budget.
Locke credited the management practices of Census Bureau director Robert Groves, citing in particular the decision to buy additional advertising in locations where responses lagged, which improved the overall response rate. The agency has begun to rely more on questioning neighbors or other reliable third parties when a person could not be reached at home, which reduced the cost of follow-up visits. Census data for about 22% of U. S. househol
Mountain View, Arkansas
Mountain View is the largest city in and the county seat of Stone County, United States. Located in the Ozarks, the city has a rich tradition of preserving folk culture. Founded in 1873, the city's economy is based on tourism related to its title as the "Folk Music Capitol of the World". Mountain View hosts the Arkansas Folk Festival in April, various folk artists at Ozark Folk Center State Park throughout the year, weekly music gatherings on the courthouse steps that are free and open to the public; the city is known for outdoors recreation opportunities, including Blanchard Springs Caverns, trout fishing on the White River and the Ozark National Forest. The town's name is derived from its location in a valley bordered by the Blue Mountain Range of the Ozark Mountains. Prior to the founding of Mountain View in 1890, the town of Riggsville, established in 1819 by Thomas Augustus Riggs, existed to the east remaining until after the Civil War, when towns with southern sympathies were to be renamed or moved altogether.
Mountain View was incorporated on August 14, 1890. Mountain View was the location of the 1929 trial in the Connie Franklin murder case, in which the "victim" testified. A tornado on April 14, 1996, rated F4 on the Fujita scale killed NFL quarterback Kurt Warner's mother-in-law and father in-law. Another EF4 tornado caused major damage to the town on February 5, 2008 in the 2008 Super Tuesday tornado outbreak, the deadliest tornado outbreak in two decades. Mountain View is located at 35°51′54″N 92°6′31″W. According to the United States Census Bureau, the city has a total area of 6.8 square miles, of which 6.8 square miles is land and 0.15% is water. The climate in this area is characterized by hot, humid summers and mild to cool winters. According to the Köppen Climate Classification system, Mountain View has a humid subtropical climate, abbreviated "Cfa" on climate maps; as of the census of 2000, there were 2,876 people, 1,287 households, 792 families residing in the city. The population density was 421.8 people per square mile.
There were 1,450 housing units at an average density of 212.7 per square mile. The racial makeup of the city was 96.97% White, 0.94% Native American, 0.03% Pacific Islander, 0.31% from other races, 1.74% from two or more races. 1.70% of the population were Hispanic or Latino of any race. There were 1,287 households out of which 23.8% had children under the age of 18 living with them, 50.7% were married couples living together, 9.2% had a female householder with no husband present, 38.4% were non-families. 35.7% of all households were made up of individuals and 19.0% had someone living alone, 65 years of age or older. The average household size was 2.13 and the average family size was 2.72. In the city, the population was spread out with 20.2% under the age of 18, 7.2% from 18 to 24, 20.7% from 25 to 44, 26.3% from 45 to 64, 25.7% who were 65 years of age or older. The median age was 47 years. For every 100 females, there were 81.1 males. For every 100 females age 18 and over, there were 80.3 males.
The median income for a household in the city was $19,302, the median income for a family was $27,589. Males had a median income of $20,000 versus $16,790 for females; the per capita income for the city was $17,375. About 10.2% of families and 17.0% of the population were below the poverty line, including 19.1% of those under age 18 and 11.7% of those age 65 or over. The local economy is tourism-based. Numerous hotels and restaurants exist to serve travelers who come to visit the nearby Blanchard Springs Caverns, in Fifty-Six, The Ozark Folk Center State Park, Loco Ropes Treetop Adventure Park. Many others seek the world-renowned trout fishing of the White River, or the excellent camping and mountain-biking that can be found in the Ozark National Forest. A few live music and variety shows, such as the White River Hoedown entertain travelers by mixing contemporary country and bluegrass music with a bit of local humor. However, the majority of visitors to Mountain View come to attend one of the two major festivals held here every year, to enjoy the impromptu folk music jam sessions that occur around the courthouse square.
The remainder of the local economy consists of agriculture the farming of livestock cattle and chickens. Large-scale industrial activities in the area are overall nonexistent, excepting a few small manufacturing companies; the Stone County Iron Works, a nationally known company that produces iron furniture and housewares, is headquartered in Mountain View. The city has seen expansion of its personal aircraft maintenance and repair industry. Stone County, along with neighboring Arkansas counties, is a dry county. Local festivals play an integral part in Mountain View's economy and culture, the city is know throughout the country for its hospitality and relaxed pace of life; as such, thousands of people travel to Mountain View each year to attend one of these events, get a taste of Ozark Mountain culture. Lodging must be secured a year in advance of the two major festivals; some local estimates say that the city's population has grown to as much as 100,000 during past festivals, though this is an exaggeration.
Average festival attendance tends to fall between 40,000 and 60,000. In April, the city hosts the Ozark Folk Festival. A highlight of this festival is an old-fashioned "home-town" parade, which brings out school bands, patriotic veterans groups, show horses, decorated floats. Numerous folk craft vendors and many impromptu performances of live folk music are part of the celebration. During the spring and fall, anytime the weather is
Per capita income
Per capita income or average income measures the average income earned per person in a given area in a specified year. It is calculated by dividing the area's total income by its total population. Per capita income is national income divided by population size. Per capita income is used to measure an area's average income and compare the wealth of different populations. Per capita income is used to measure a country's standard of living, it is expressed in terms of a used international currency such as the euro or United States dollar, is useful because it is known, is calculable from available gross domestic product and population estimates, produces a useful statistic for comparison of wealth between sovereign territories. This helps to ascertain a country's development status, it is one of the three measures for calculating the Human Development Index of a country. In the United States, it is defined by the U. S. Census Bureau as the following: "Per capita income is the mean money income received in the past 12 months computed for every man and child in a geographic area."
Critics claim that per capita income has several weaknesses in measuring prosperity: Comparisons of per capita income over time need to consider inflation. Without adjusting for inflation, figures tend to overstate the effects of economic growth. International comparisons can be distorted by cost of living differences not reflected in exchange rates. Where the objective is to compare living standards between countries, adjusting for differences in purchasing power parity will more reflect what people are able to buy with their money, it does not reflect income distribution. If a country's income distribution is skewed, a small wealthy class can increase per capita income while the majority of the population has no change in income. In this respect, median income is more useful when measuring of prosperity than per capita income, as it is less influenced by outliers. Non-monetary activity, such as barter or services provided within the family, is not counted; the importance of these services varies among economies.
Per capita income does not consider whether income is invested in factors to improve the area's development, such as health, education, or infrastructure. List of countries by average wage List of countries by GDP per capita—GDP at market or government official exchange rates per inhabitant List of countries by GDP per capita—GDP calculated at purchasing power parity exchange per inhabitant List of countries by GNI per capita List of countries by GNI per capita List of countries by income equality Total personal income
Shreveport is a city in the U. S. state of Louisiana. It is the most populous city in the Shreveport-Bossier City metropolitan area. Shreveport ranks third in population in Louisiana after New Orleans and Baton Rouge and 126th in the U. S; the bulk of Shreveport is in Caddo Parish. Shreveport extends along the west bank of the Red River into neighboring Bossier Parish; the population of Shreveport was 199,311 as of the 2010 U. S. Census; the United States Census Bureau's 2017 estimate for the city's population decreased to 192,036. Shreveport was founded in 1836 by the Shreve Town Company, a corporation established to develop a town at the juncture of the newly navigable Red River and the Texas Trail, an overland route into the newly independent Republic of Texas. Prior to Texas becoming independent, this trail entered Mexico; the city grew throughout the 20th century and, after the discovery of oil in Louisiana, became a national center for the oil industry. Standard Oil of Louisiana and United Gas Corporation were headquartered in the city until the 1960s and 1980s.
After the loss of jobs in the oil industry, the close of Shreveport Operations, other economic problems the city struggled with a declining population, poverty and violent crime. Since Cedric Glover's tenure as mayor of Shreveport, the city has revitalized its neighborhoods and roads to end its population decline, revive the economy through diversification, lower crime. Shreveport is the educational and cultural center of the Ark-La-Tex region, where Arkansas and Texas meet, it is the location of Centenary College of Louisiana, Louisiana State University Shreveport, Louisiana Tech University Shreveport, Southern University at Shreveport, Louisiana Baptist University. Its neighboring city Bossier is the location of Bossier Parish Community College; the city forms part of the I-20 Cyber Corridor linking Shreveport, Bossier and Monroe to Dallas and Tyler and Atlanta, Georgia. Companies with significant operations or headquarters in Shreveport are AT&T, Chase Bank, Capital One, Regions Financial Corporation, SWEPCO, UPS, General Electric, UOP LLC, Calumet Specialty Products Partners, APS Payroll.
Shreveport was established to launch a town at the meeting point of the Brown Bricks and the Texas Trail. The Red River was made navigable by Captain Henry Miller Shreve, who led the United States Army Corps of Engineers effort to clear the Red River. A 180-mile-long natural log jam, the Great Raft, had obstructed passage to shipping. Shreve used the Heliopolis, to remove the log jam; the company and the village of Shreve Town were named in Shreve's honor. Shreve Town was contained within the boundaries of a section of land sold to the company in 1835 by the indigenous Caddo Indians. In 1838 Caddo Parish was created from the large Natchitoches Parish, Shreve Town became its parish seat. On March 20, 1839, the town was incorporated as Shreveport; the town consisted of 64 city blocks, created by eight streets running west from the Red River and eight streets running south from Cross Bayou, one of its tributaries. Shreveport soon became a center of steamboat commerce, carrying cotton and agricultural crops from the plantations of Caddo Parish.
Shreveport had a slave market, though slave trading was not as widespread as in other parts of the state. Steamboats plied the Red River, stevedores loaded and unloaded cargo. By 1860, Shreveport had a population of 1,300 slaves within the city limits. During the American Civil War, Shreveport was the capital of Louisiana from 1863 to 1865, having succeeded Baton Rouge and Opelousas after each fell under Union control; the city was a Confederate stronghold throughout the war and was the site of the headquarters of the Trans-Mississippi Department of the Confederate Army. Fort Albert Sidney Johnston was built on a ridge northwest of the city; because of limited development in that area, the site is undisturbed in the 21st century. Isolated from events in the east, the Civil War continued in the Trans-Mississippi theater for several weeks after Robert E. Lee's surrender in April 1865, the Trans-Mississippi was the last Confederate command to surrender, on May 26, 1865. "The period May 13-21, 1865, was filled with great uncertainly after soldiers learned of the surrenders of Lee and Johnston, the Good Friday assassination of President Abraham Lincoln and the rapid departure of their own generals."
In the confusion there was a breakdown of military rioting by soldiers. They destroyed buildings containing service records, a loss that made it difficult for many to gain Confederate pensions from state governments. Throughout the war, women in Shreveport did much to assist the soldiers fighting far to the east. Historian John D. Winters writes of them in The Civil War in Louisiana: "The women of Shreveport and vicinity labored long hours over their sewing machines to provide their men with adequate underclothing and uniforms. After the excitement of Fort Sumter, there was a great rush to get the volunteer companies ready and off to New Orleans... Forming a Military Aid Society, the ladies of Shreveport requested donations of wool and cotton yarn for knitting socks. Joined by others, the Society collected blankets for the wounded and gave concerts and tableaux to raise funds. Tickets were sold for a diamond ring given by the mercantile house of Hyams and Brothers..."A Confederate minstrel show gave two performances to raise mon
Population density is a measurement of population per unit area or unit volume. It is applied to living organisms, most of the time to humans, it is a key geographical term. In simple terms population density refers to the number of people living in an area per kilometer square. Population density is population divided by total land water volume, as appropriate. Low densities may lead to further reduced fertility; this is called the Allee effect after the scientist. Examples of the causes in low population densities include: Increased problems with locating sexual mates Increased inbreeding For humans, population density is the number of people per unit of area quoted per square kilometer or square mile; this may be calculated for a county, country, another territory or the entire world. The world's population is around 7,500,000,000 and Earth's total area is 510,000,000 square kilometers. Therefore, the worldwide human population density is around 7,500,000,000 ÷ 510,000,000 = 14.7 per km2. If only the Earth's land area of 150,000,000 km2 is taken into account human population density is 50 per km2.
This includes all continental and island land area, including Antarctica. If Antarctica is excluded population density rises to over 55 people per km2. However, over half of the Earth's land mass consists of areas inhospitable to human habitation, such as deserts and high mountains, population tends to cluster around seaports and fresh-water sources. Thus, this number by itself does not give any helpful measurement of human population density. Several of the most densely populated territories in the world are city-states and dependencies; these territories have a small area and a high urbanization level, with an economically specialized city population drawing on rural resources outside the area, illustrating the difference between high population density and overpopulation The potential to maintain the agricultural aspects of deserts is limited as there is not enough precipitation to support a sustainable land. The population in these areas are low. Therefore, cities in the Middle East, such as Dubai, have been increasing in population and infrastructure growth at a fast pace.
Cities with high population densities are, by some, considered to be overpopulated, though this will depend on factors like quality of housing and infrastructure and access to resources. Most of the most densely populated cities are in Southeast Asia, though Cairo and Lagos in Africa fall into this category. City population and area are, however dependent on the definition of "urban area" used: densities are invariably higher for the central city area than when suburban settlements and the intervening rural areas are included, as in the areas of agglomeration or metropolitan area, the latter sometimes including neighboring cities. For instance, Milwaukee has a greater population density when just the inner city is measured, the surrounding suburbs excluded. In comparison, based on a world population of seven billion, the world's inhabitants, as a loose crowd taking up ten square feet per person, would occupy a space a little larger than Delaware's land area; the Gaza Strip has a population density of 5,046 pop/km.
Although arithmetic density is the most common way of measuring population density, several other methods have been developed to provide a more accurate measure of population density over a specific area. Arithmetic density: The total number of people / area of land Physiological density: The total population / area of arable land Agricultural density: The total rural population / area of arable land Residential density: The number of people living in an urban area / area of residential land Urban density: The number of people inhabiting an urban area / total area of urban land Ecological optimum: The density of population that can be supported by the natural resources Demography Human geography Idealized population Optimum population Population genetics Population health Population momentum Population pyramid Rural transport problem Small population size Distance sampling List of population concern organizations List of countries by population density List of cities by population density List of city districts by population density List of English districts by population density List of European cities proper by population density List of United States cities by population density List of islands by population density List of U.
S. states by population density List of Australian suburbs by population density Selected Current and Historic City, Ward & Neighborhood Density Duncan Smith / UCL Centre for Advanced Spatial Analysis. "World Population Density". Exploratory map shows data from the Global Human Settlement Layer produced by the European Commission JRC and the CIESIN Columbia University
Arkansas is a state in the southern region of the United States, home to over 3 million people as of 2018. Its name is of Siouan derivation from the language of the Osage denoting their related kin, the Quapaw Indians; the state's diverse geography ranges from the mountainous regions of the Ozark and the Ouachita Mountains, which make up the U. S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta. Arkansas is the 33rd most populous of the 50 United States; the capital and most populous city is Little Rock, located in the central portion of the state, a hub for transportation, business and government. The northwestern corner of the state, such as the Fayetteville–Springdale–Rogers Metropolitan Area and Fort Smith metropolitan area, is a population and economic center; the largest city in the state's eastern part is Jonesboro. The largest city in the state's southeastern part is Pine Bluff.
The Territory of Arkansas was admitted to the Union as the 25th state on June 15, 1836. In 1861, Arkansas withdrew from the United States and joined the Confederate States of America during the Civil War. On returning to the Union in 1868, the state continued to suffer due to its earlier reliance on slavery and the plantation economy, causing the state to fall behind economically and socially. White rural interests continued to dominate the state's politics until the civil rights movement. Arkansas began to diversify its economy following World War II and relies on its service industry, poultry, tourism and rice; the culture of Arkansas is observable in museums, novels, television shows and athletic venues across the state. People such as politician and educational advocate William Fulbright; the name Arkansas was applied to the Arkansas River and derives from a French term, the plural term for Quapaws, a Dhegiha Siouan-speaking Native American people who settled in Arkansas around the 13th century.
This comes from an Algonquian term, /akansa/, for the Quapaws, is also the root term for Kansas. The name has been spelled in a variety of fashions. In 1881, the pronunciation of Arkansas with the final "s" being silent was made official by an act of the state legislature after a dispute arose between Arkansas's two U. S. senators as one favored the pronunciation as AR-kən-saw while the other favored ar-KAN-zəs. In 2007, the state legislature passed a non-binding resolution declaring that the possessive form of the state's name is Arkansas's, followed by the state government. Arkansas borders Louisiana to the south, Texas to the southwest, Oklahoma to the west, Missouri to the north, Tennessee and Mississippi to the east; the United States Census Bureau classifies Arkansas as a southern state, sub-categorized among the West South Central States. The Mississippi River forms most of Arkansas's eastern border, except in Clay and Greene, counties where the St. Francis River forms the western boundary of the Missouri Bootheel, in many places where the channel of the Mississippi has meandered from its original 1836 course.
Arkansas can be split into two halves, the highlands in the northwest half and the lowlands of the southeastern half. The highlands are part of the Southern Interior Highlands, including The Ozarks and the Ouachita Mountains; the southern lowlands include the Arkansas Delta. This dual split can yield to general regions named northwest, northeast, southeast, or central Arkansas; these directionally named regions are broad and not defined along county lines. Arkansas has seven distinct natural regions: the Ozark Mountains, Ouachita Mountains, Arkansas River Valley, Gulf Coastal Plain, Crowley's Ridge, the Arkansas Delta, with Central Arkansas sometimes included as a blend of multiple regions; the southeastern part of Arkansas along the Mississippi Alluvial Plain is sometimes called the Arkansas Delta. This region is a flat landscape of rich alluvial soils formed by repeated flooding of the adjacent Mississippi. Farther away from the river, in the southeast portion of the state, the Grand Prairie consists of a more undulating landscape.
Both are fertile agricultural areas. The Delta region is bisected by a geological formation known as Crowley's Ridge. A narrow band of rolling hills, Crowley's Ridge rises from 250 to 500 feet above the surrounding alluvial plain and underlies many of the major towns of eastern Arkansas. Northwest Arkansas is part of the Ozark Plateau including the Ozark Mountains, to the south are the Ouachita Mountains, these regions are divided by the Arkansas River; these mountain ranges are part of the U. S. Interior Highlands region, the only major mountainous region between the Rocky Mountains and the Appalachian Mountains; the highest point in the state is Mount Magazine in the Ouachita Mountains, which rises to 2,753 feet above sea level. Arkansas has many rivers and reservoirs within or along its borders. Major tributaries of the Mississippi River include the Arkansas River, the White River, the St. Francis River; the Arkansas is fed by the Mulberry River and the Fou
A city is a large human settlement. Cities have extensive systems for housing, sanitation, land use, communication, their density facilitates interaction between people, government organizations and businesses, sometimes benefiting different parties in the process. City-dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization half of the world population now lives in cities, which has had profound consequences for global sustainability. Present-day cities form the core of larger metropolitan areas and urban areas—creating numerous commuters traveling towards city centers for employment and edification. However, in a world of intensifying globalization, all cities are in different degree connected globally beyond these regions; the most populated city proper is Chongqing while the most populous metropolitan areas are the Greater Tokyo Area, the Shanghai area, Jabodetabek. The cities of Faiyum and Varanasi are among those laying claim to longest continual inhabitation.
A city is distinguished from other human settlements by its great size, but by its functions and its special symbolic status, which may be conferred by a central authority. The term can refer either to the physical streets and buildings of the city or to the collection of people who dwell there, can be used in a general sense to mean urban rather than rural territory. A variety of definitions, invoking population, population density, number of dwellings, economic function, infrastructure, are used in national censuses to classify populations as urban. Common population definitions for a city range between 1,500 and 50,000 people, with most U. S. states using a minimum between 5,000 inhabitants. However, some jurisdictions set no such minimums. In the United Kingdom, city status is awarded by the government and remains permanently, resulting in some small cities, such as Wells and St Davids. According to the "functional definition" a city is not distinguished by size alone, but by the role it plays within a larger political context.
Cities serve as administrative, commercial and cultural hubs for their larger surrounding areas. Examples of settlements called city which may not meet any of the traditional criteria to be named such include Broad Top City and City Dulas, Anglesey, a hamlet; the presence of a literate elite is sometimes included in the definition. A typical city has professional administrators and some form of taxation to support the government workers; the governments may be based on heredity, military power, work projects such as canal building, food distribution, land ownership, commerce, finance, or a combination of these. Societies that live in cities are called civilizations; the word city and the related civilization come, via Old French, from the Latin root civitas meaning citizenship or community member and coming to correspond with urbs, meaning city in a more physical sense. The Roman civitas was linked with the Greek "polis"—another common root appearing in English words such as metropolis. Urban geography deals both with their internal structure.
Town siting has varied through history according to natural, technological and military contexts. Access to water has long been a major factor in city placement and growth, 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 a rule cannot produce their own food and therefore must develop some relationship with a hinterland which 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 market places in optimal mutually reachable locations; the vast majority of cities have a central area containing buildings with special economic and religious significance. Archaeologists refer to this area by the Greek term temenos; these spaces reflect and amplify the city's centrality and importance to its wider sphere of influence.
Today cities have downtown, sometimes coincident with a central business district. Cities have public spaces where anyone can go; these include owned spaces open to 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 public spaces. Parks and other natural sites within cities provide residents with relief from the hardness and regularity of typical built environments. Urban structure follows one or more basic patterns: geomorphic, concentric and curvilinear. Physical environment constrains the form in which a city is built. If located on a mountainside, urban structure may rely on winding roads, it may be adapted to its means of subsistence. And it may be set up for optimal defense given the surrounding landscape. Beyond these "geomorphi