Education is the process of facilitating learning, or the acquisition of knowledge, values and habits. Educational methods include storytelling, teaching and directed research. Education takes place under the guidance of educators and learners may educate themselves. Education can take place in formal or informal settings and any experience that has a formative effect on the way one thinks, feels, or acts may be considered educational; the methodology of teaching is called pedagogy. Formal education is divided formally into such stages as preschool or kindergarten, primary school, secondary school and college, university, or apprenticeship. A right to education has been recognized by the United Nations. In most regions, education is compulsory up to a certain age. Etymologically, the word "education" is derived from the Latin word ēducātiō from ēducō, related to the homonym ēdūcō from ē- and dūcō. Education began in prehistory, as adults trained the young in the knowledge and skills deemed necessary in their society.
In pre-literate societies, this was achieved orally and through imitation. Story-telling passed knowledge and skills from one generation to the next; as cultures began to extend their knowledge beyond skills that could be learned through imitation, formal education developed. Schools existed in Egypt at the time of the Middle Kingdom. Plato founded the Academy in the first institution of higher learning in Europe; the city of Alexandria in Egypt, established in 330 BCE, became the successor to Athens as the intellectual cradle of Ancient Greece. There, the great Library of Alexandria was built in the 3rd century BCE. European civilizations suffered a collapse of literacy and organization following the fall of Rome in CE 476. In China, Confucius, of the State of Lu, was the country's most influential ancient philosopher, whose educational outlook continues to influence the societies of China and neighbours like Korea and Vietnam. Confucius gathered disciples and searched in vain for a ruler who would adopt his ideals for good governance, but his Analects were written down by followers and have continued to influence education in East Asia into the modern era.
The Aztecs had a well-developed theory about education, which has an equivalent word in Nahuatl called tlacahuapahualiztli. It means "the art of raising or educating a person" or "the art of strengthening or bringing up men." This was a broad conceptualization of education, which prescribed that it begins at home, supported by formal schooling, reinforced by community living. Historians cite that formal education was mandatory for everyone regardless of social class and gender. There was the word neixtlamachiliztli, "the act of giving wisdom to the face." These concepts underscore a complex set of educational practices, oriented towards communicating to the next generation the experience and intellectual heritage of the past for the purpose of individual development and his integration into the community. After the Fall of Rome, the Catholic Church became the sole preserver of literate scholarship in Western Europe; the church established cathedral schools in the Early Middle Ages as centres of advanced education.
Some of these establishments evolved into medieval universities and forebears of many of Europe's modern universities. During the High Middle Ages, Chartres Cathedral operated the famous and influential Chartres Cathedral School; the medieval universities of Western Christendom were well-integrated across all of Western Europe, encouraged freedom of inquiry, produced a great variety of fine scholars and natural philosophers, including Thomas Aquinas of the University of Naples, Robert Grosseteste of the University of Oxford, an early expositor of a systematic method of scientific experimentation, Saint Albert the Great, a pioneer of biological field research. Founded in 1088, the University of Bologne is considered the first, the oldest continually operating university. Elsewhere during the Middle Ages, Islamic science and mathematics flourished under the Islamic caliphate, established across the Middle East, extending from the Iberian Peninsula in the west to the Indus in the east and to the Almoravid Dynasty and Mali Empire in the south.
The Renaissance in Europe ushered in a new age of scientific and intellectual inquiry and appreciation of ancient Greek and Roman civilizations. Around 1450, Johannes Gutenberg developed a printing press, which allowed works of literature to spread more quickly; the European Age of Empires saw European ideas of education in philosophy, religion and sciences spread out across the globe. Missionaries and scholars brought back new ideas from other civilizations – as with the Jesuit China missions who played a significant role in the transmission of knowledge and culture between China and Europe, translating works from Europe like Euclid's Elements for Chinese scholars and the thoughts of Confucius for European audiences; the Enlightenment saw the emergence of a more secular educational outlook in Europe. In most countries today, full-time education, whether at school or otherwise, is compulsory for all children up to a certain age. Due to this the proliferation of compulsory education, combined with population growth, UNESCO has calculated that in the next 30 years more people will receive formal education than in all of human history thus far.
Formal education occurs in a structured environment. Formal education takes place in a school environme
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. Most weather phenomena occur in the lowest level of the atmosphere, the troposphere, just below the stratosphere. Weather refers to day-to-day temperature and precipitation activity, whereas climate is the term for the averaging of atmospheric conditions over longer periods of time; when used without qualification, "weather" is understood to mean the weather of Earth. Weather is driven by air pressure and moisture differences between one place and another; these differences can occur due to the sun's angle at any particular spot, which varies with latitude. The strong temperature contrast between polar and tropical air gives rise to the largest scale atmospheric circulations: the Hadley Cell, the Ferrel Cell, the Polar Cell, the jet stream. Weather systems in the mid-latitudes, such as extratropical cyclones, are caused by instabilities of the jet stream flow.
Because the Earth's axis is tilted relative to its orbital plane, sunlight is incident at different angles at different times of the year. On Earth's surface, temperatures range ±40 °C annually. Over thousands of years, changes in Earth's orbit can affect the amount and distribution of solar energy received by the Earth, thus influencing long-term climate and global climate change. Surface temperature differences in turn cause pressure differences. Higher altitudes are cooler than lower altitudes, as most atmospheric heating is due to contact with the Earth's surface while radiative losses to space are constant. Weather forecasting is the application of science and technology to predict the state of the atmosphere for a future time and a given location; the Earth's weather system is a chaotic system. Human attempts to control the weather have occurred throughout history, there is evidence that human activities such as agriculture and industry have modified weather patterns. Studying how the weather works on other planets has been helpful in understanding how weather works on Earth.
A famous landmark in the Solar System, Jupiter's Great Red Spot, is an anticyclonic storm known to have existed for at least 300 years. However, weather is not limited to planetary bodies. A star's corona is being lost to space, creating what is a thin atmosphere throughout the Solar System; the movement of mass ejected from the Sun is known as the solar wind. On Earth, the common weather phenomena include wind, rain, snow and dust storms. Less common events include natural disasters such as tornadoes, hurricanes and ice storms. All familiar weather phenomena occur in the troposphere. Weather does occur in the stratosphere and can affect weather lower down in the troposphere, but the exact mechanisms are poorly understood. Weather occurs due to air pressure and moisture differences between one place to another; these differences can occur due to the sun angle at any particular spot, which varies by latitude from the tropics. In other words, the farther from the tropics one lies, the lower the sun angle is, which causes those locations to be cooler due the spread of the sunlight over a greater surface.
The strong temperature contrast between polar and tropical air gives rise to the large scale atmospheric circulation cells and the jet stream. Weather systems in the mid-latitudes, such as extratropical cyclones, are caused by instabilities of the jet stream flow. Weather systems in the tropics, such as monsoons or organized thunderstorm systems, are caused by different processes; because the Earth's axis is tilted relative to its orbital plane, sunlight is incident at different angles at different times of the year. In June the Northern Hemisphere is tilted towards the sun, so at any given Northern Hemisphere latitude sunlight falls more directly on that spot than in December; this effect causes seasons. Over thousands to hundreds of thousands of years, changes in Earth's orbital parameters affect the amount and distribution of solar energy received by the Earth and influence long-term climate.. The uneven solar heating can be due to the weather itself in the form of cloudiness and precipitation.
Higher altitudes are cooler than lower altitudes, which the result of higher surface temperature and radiational heating, which produces the adiabatic lapse rate. In some situations, the temperature increases with height; this phenomenon is known as an inversion and can cause mountaintops to be warmer than the valleys below. Inversions can lead to the formation of fog and act as a cap that suppresses thunderstorm development. On local scales, temperature differences can occur because different surfaces have differing physical characteristics such as reflectivity, roughness, or moisture content. Surface temperature differences in turn cause pressure differences. A hot surface warms the air above it causing it to expand and lower the density and the resulting surface air pressure; the resulting horizontal pressure gradient moves the air from higher to lower pressure regions, creating a wind, the Earth's rotation causes deflection of this air flow due to the Coriolis effect. The simple systems thus formed can display emergent behaviour to produce more complex systems and thus other weather phenomena.
Large scale examples include the Hadley cell while a small
Web search engine
A web search engine or Internet search engine is a software system, designed to carry out web search, which means to search the World Wide Web in a systematic way for particular information specified in a web search query. The search results are presented in a line of results referred to as search engine results pages; the information may be a mix of web pages, videos, articles, research papers and other types of files. Some search engines mine data available in databases or open directories. Unlike web directories, which are maintained only by human editors, search engines maintain real-time information by running an algorithm on a web crawler. Internet content, not capable of being searched by a web search engine is described as the deep web. Internet search engines themselves predate the debut of the Web in December 1990; the Who is user search dates back to 1982 and the Knowbot Information Service multi-network user search was first implemented in 1989. The first well documented search engine that searched content files, namely FTP files was Archie, which debuted on 10 September 1990.
Prior to September 1993, the World Wide Web was indexed by hand. There was a list of webservers hosted on the CERN webserver. One snapshot of the list in 1992 remains, but as more and more web servers went online the central list could no longer keep up. On the NCSA site, new servers were announced under the title "What's New!"The first tool used for searching content on the Internet was Archie. The name stands for "archive" without the "v", it was created by Alan Emtage, Bill Heelan and J. Peter Deutsch, computer science students at McGill University in Montreal, Canada; the program downloaded the directory listings of all the files located on public anonymous FTP sites, creating a searchable database of file names. The rise of Gopher led to two new search programs and Jughead. Like Archie, they searched the file titles stored in Gopher index systems. Veronica provided a keyword search of most Gopher menu titles in the entire Gopher listings. Jughead was a tool for obtaining menu information from specific Gopher servers.
While the name of the search engine "Archie Search Engine" was not a reference to the Archie comic book series, "Veronica" and "Jughead" are characters in the series, thus referencing their predecessor. In the summer of 1993, no search engine existed for the web, though numerous specialized catalogues were maintained by hand. Oscar Nierstrasz at the University of Geneva wrote a series of Perl scripts that periodically mirrored these pages and rewrote them into a standard format; this formed the basis for W3Catalog, the web's first primitive search engine, released on September 2, 1993. In June 1993, Matthew Gray at MIT, produced what was the first web robot, the Perl-based World Wide Web Wanderer, used it to generate an index called'Wandex'; the purpose of the Wanderer was to measure the size of the World Wide Web, which it did until late 1995. The web's second search engine Aliweb appeared in November 1993. Aliweb did not use a web robot, but instead depended on being notified by website administrators of the existence at each site of an index file in a particular format.
JumpStation used a web robot to find web pages and to build its index, used a web form as the interface to its query program. It was thus the first WWW resource-discovery tool to combine the three essential features of a web search engine as described below; because of the limited resources available on the platform it ran on, its indexing and hence searching were limited to the titles and headings found in the web pages the crawler encountered. One of the first "all text" crawler-based search engines was WebCrawler, which came out in 1994. Unlike its predecessors, it allowed users to search for any word in any webpage, which has become the standard for all major search engines since, it was the search engine, known by the public. In 1994, Lycos was launched and became a major commercial endeavor. Soon after, many search engines vied for popularity; these included Magellan, Infoseek, Northern Light, AltaVista. Yahoo! was among the most popular ways for people to find web pages of interest, but its search function operated on its web directory, rather than its full-text copies of web pages.
Information seekers could browse the directory instead of doing a keyword-based search. In 1996, Netscape was looking to give a single search engine an exclusive deal as the featured search engine on Netscape's web browser. There was so much interest that instead Netscape struck deals with five of the major search engines: for $5 million a year, each search engine would be in rotation on the Netscape search engine page; the five engines were Yahoo!, Lycos and Excite. Google adopted the idea of selling search terms in 1998, from a small search engine company named goto.com. This move had a significant effect on the SE business, which went from struggling to one of the most profitable businesses in the Internet. Search engines were known as some of the brightest stars in the Internet investing frenzy that occurred in the late 1990s. Several
Illinois is a state in the Midwestern and Great Lakes region of the United States. It has the fifth largest gross domestic product, the sixth largest population, the 25th largest land area of all U. S. states. Illinois is noted as a microcosm of the entire United States. With Chicago in northeastern Illinois, small industrial cities and immense agricultural productivity in the north and center of the state, natural resources such as coal and petroleum in the south, Illinois has a diverse economic base, is a major transportation hub. Chicagoland, Chicago's metropolitan area, encompasses over 65% of the state's population; the Port of Chicago connects the state to international ports via two main routes: from the Great Lakes, via the Saint Lawrence Seaway, to the Atlantic Ocean and from the Great Lakes to the Mississippi River, via the Illinois Waterway to the Illinois River. The Mississippi River, the Ohio River, the Wabash River form parts of the boundaries of Illinois. For decades, Chicago's O'Hare International Airport has been ranked as one of the world's busiest airports.
Illinois has long had a reputation as a bellwether both in social and cultural terms and, through the 1980s, in politics. The capital of Illinois is Springfield, located in the central part of the state. Although today's Illinois' largest population center is in its northeast, the state's European population grew first in the west as the French settled the vast Mississippi of the Illinois Country of New France. Following the American Revolutionary War, American settlers began arriving from Kentucky in the 1780s via the Ohio River, the population grew from south to north. In 1818, Illinois achieved statehood. Following increased commercial activity in the Great Lakes after the construction of the Erie Canal, Chicago was founded in the 1830s on the banks of the Chicago River at one of the few natural harbors on the southern section of Lake Michigan. John Deere's invention of the self-scouring steel plow turned Illinois's rich prairie into some of the world's most productive and valuable farmland, attracting immigrant farmers from Germany and Sweden.
The Illinois and Michigan Canal made transportation between the Great Lakes and the Mississippi River valley faster and cheaper, new railroads carried immigrants to new homes in the country's west and shipped commodity crops to the nation's east. The state became a transportation hub for the nation. By 1900, the growth of industrial jobs in the northern cities and coal mining in the central and southern areas attracted immigrants from Eastern and Southern Europe. Illinois was an important manufacturing center during both world wars; the Great Migration from the South established a large community of African Americans in the state, including Chicago, who founded the city's famous jazz and blues cultures. Chicago, the center of the Chicago Metropolitan Area, is now recognized as a global alpha-level city. Three U. S. presidents have been elected while living in Illinois: Abraham Lincoln, Ulysses S. Grant, Barack Obama. Additionally, Ronald Reagan, whose political career was based in California, was born and raised in the state.
Today, Illinois honors Lincoln with its official state slogan Land of Lincoln, displayed on its license plates since 1954. The state is the site of the Abraham Lincoln Presidential Library and Museum in Springfield and the future home of the Barack Obama Presidential Center in Chicago. "Illinois" is the modern spelling for the early French Catholic missionaries and explorers' name for the Illinois Native Americans, a name, spelled in many different ways in the early records. American scholars thought the name "Illinois" meant "man" or "men" in the Miami-Illinois language, with the original iliniwek transformed via French into Illinois; this etymology is not supported by the Illinois language, as the word for "man" is ireniwa, plural of "man" is ireniwaki. The name Illiniwek has been said to mean "tribe of superior men", a false etymology; the name "Illinois" derives from the Miami-Illinois verb irenwe·wa - "he speaks the regular way". This was taken into the Ojibwe language in the Ottawa dialect, modified into ilinwe·.
The French borrowed these forms, changing the /we/ ending to spell it as -ois, a transliteration for its pronunciation in French of that time. The current spelling form, began to appear in the early 1670s, when French colonists had settled in the western area; the Illinois's name for themselves, as attested in all three of the French missionary-period dictionaries of Illinois, was Inoka, of unknown meaning and unrelated to the other terms. American Indians of successive cultures lived along the waterways of the Illinois area for thousands of years before the arrival of Europeans; the Koster Site demonstrates 7,000 years of continuous habitation. Cahokia, the largest regional chiefdom and urban center of the Pre-Columbian Mississippian culture, was located near present-day Collinsville, Illinois, they built an urban complex of more than 100 platform and burial mounds, a 50-acre plaza larger than 35 football fields, a woodhenge of sacred cedar, all in a planned design expressing the culture's cosmology.
Monks Mound, the center of the site, is the largest Pre-Columbian structure north of the Valley of Mexico. It is 100 feet high, 951 feet long, 836 feet wide, covers 13.8 acres. It contains about 814,000 cubic yards of earth, it was topped by a structure thought to have measured about 105 feet in length and 48 feet in width, covered an area 5,000 square feet, been as much as 50 feet high, making its peak 150 feet above the level of the pl
Hinsdale is a village in Cook and DuPage counties in the U. S. state of Illinois. Hinsdale is a western suburb of Chicago; the population was 16,816 at the 2010 census. The town's ZIP code is 60521, it is listed in the top 1% of wealthiest towns in Illinois, it is known locally for its beautiful residences and teardown culture, of which new rebuilds have taken 30% of homes in the village. The town has a rolling, wooded topography, with a quaint downtown, is a 22-minute express train ride to downtown Chicago on the Burlington Northern line. Hinsdale is located 20 miles west of Chicago and is bordered by Western Springs to the east, Clarendon Hills and Westmont to the west, Oak Brook to the north, Burr Ridge and Willowbrook to the south, it can be reached by highway from Interstate 294 or Interstate 55. The eastern boundary of Hinsdale is I-294, the western boundary is Route 83. According to the 2010 census, Hinsdale has a total area of 4.633 square miles, of which 4.6 square miles is land and 0.033 square miles is water.
As of the census of 2010, 16,816 people lived in Hinsdale. The racial makeup of the village was 90.0% White, 1.3% African American, 0.0% Native American, 6.4% Asian, 0.1% Pacific Islander, 0.5% some other race, 1.7% from two or more races. Hispanic or Latino of any race were 3.5% of the population. The census recorded 5,488 households in the village, out of which 48.2% had children under the age of 18 living with them, 73.2% were headed by married couples living together, 6.6% had a female householder with no husband present, 18.0% were non-families. 16.5% of all households were made up of individuals, 8.5% were someone living alone, 65 years of age or older. The average household size was 3.03, the average family size was 3.43. According to the 2010 census, Hinsdale's age distribution amounted to 33.5% under the age of 18, 5.3% from 18 to 24, 17.4% from 25 to 44, 32.3% from 45 to 64, 11.5% who were 65 years of age or older. The median age was 41.4 years. For every 100 females, there were 95.6 males.
For every 100 females age 18 and over, there were 92.0 males. The median income for a household in the city was $165,598, the median income for a family was $170,433. Males had a median income of $161,579 versus $77,292 for females; the per capita income for the city was $78,902. About 2.2% of the population was below the poverty line, including 3.8% of those under age 18 and 0.4% of those age 65 or over. Hinsdale's downtown area is a National Register Historic District; the downtown area is located in the center of town and is remarkably little changed considering the many teardowns that have occurred in town. The village has restaurants, different types of shops, various services, as well as the train station; the Robbins Park district just east of downtown between Garfield Street and County Line Road, as well as between Hinsdale Avenue and 9th Street, is a National Register Historic District as well. The district includes two of Hinsdale's seven buildings individually listed on the National Register of Historic Places, as well as seven of seventeen Hinsdale Historic Landmarks.
The six individual Hinsdale buildings on the National Register of Historic Places are the Orland P. Bassett House at 329 E. Sixth St. the Robert A. and Mary Childs House at 318 S. Garfield Ave. Immanuel Evangelical Church at 302 S. Grant St. the Francis Stuyvesant Peabody House at 8 E. Third St. and the William Whitney House at 142 E. First St. Another significant architectural landmark is the R. Harold Zook Home and Studio, located at 327 S. Oak Street and was saved from demolition in 2005 by relocation to the Katherine Legge Memorial Park, 5941 S. County Line Road. To address Hinsdale's legacy of important architectural landmarks, the Hinsdale Historical Society runs the Roger & Ruth Anderson Architecture Center, which advocates for the preservation of Hinsdale's historical architecture and serves as an archive and resource; the village was incorporated on April 1, 1873. Law enforcement is provided by the Hinsdale Police Department; the Hinsdale Fire Department was established in 1893. The community is served by the United States Postal Service Hinsdale Post Office.
As of December 2014, the village president is Jr.. The village trustees are J. Kimberley Angelo, Christopher J. Elder, William N. Haarlow, Gerald J. Hughes, Laura LaPlaca and Bob Saigh. Hinsdale is served by Metra's BNSF Railway Line at three stations: West Hinsdale and Highlands. Additionally, Pace operates connecting bus services. Pace bus lines 663 and 668 serve Hinsdale. Community Consolidated School District 181 and the Hinsdale Township High School District 86 serve Hinsdale's youth; the high school district has its headquarters in Hinsdale. The School District 181 elementary schools within Hinsdale include The Lane School, Madison School, Monroe School, Oak School. Elementary schools in District 181 that are not in Hinsdale include Prospect School, Elm School, Walker School. Hinsdale Middle School, operated by the elementary school district, is in Hinsdale. Clarendon Hills Middle School, in District 181, is in Clarendon Hills. St Isaac Jogues is a K-8 Catholic Grade School School located in Hinsdale.
Hinsdale Central High School is located in Hinsdale. The Hinsdale Public Library is located in the west wing of the Memorial Building; the library opened in August 1893. The Memorial Building, the library's first permanent residence, was completed in 1929. D. K. Pearson, a director of the library association, donated his house and a portion of his estate to the library system. In 1988 the Memorial Building received an addition on the west side, th
The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti
Social networking service
A social networking service is an online platform which people use to build social networks or social relations with other people who share similar personal or career interests, backgrounds or real-life connections. The social network is distributed across various computer networks; the social networks are inherently computer networks, linking people and knowledge. Social networking services vary in the number of features, they can incorporate a range of new information and communication tools, operating on desktops and on laptops, on mobile devices such as tablet computers and smartphones. They may feature "web logging" diary entries online. Online community services are sometimes considered social-network services by programmers and users, though in a broader sense, a social-network service provides an individual-centered service whereas online community services are group-centered. Defined as "websites that facilitate the building of a network of contacts in order to exchange various types of content online," social networking sites provide a space for interaction to continue beyond in person interactions.
These computer mediated interactions link members of various networks and may help to both maintain and develop new social ties. Social networking sites allow users to share ideas, digital photos and videos, to inform others about online or real-world activities and events with people in their network. While in-person social networking – such as gathering in a village market to talk about events – has existed since the earliest development of towns, the Web enables people to connect with others who live in different locations, ranging from across a city to across the world. Depending on the social media platform, members may be able to contact any other member. In other cases, members can contact anyone they have a connection to, subsequently anyone that contact has a connection to, so on; the success of social networking services can be seen in their dominance in society today, with Facebook having a massive 2.13 billion active monthly users and an average of 1.4 billion daily active users in 2017.
LinkedIn, a career-oriented social-networking service requires that a member know another member in real life before they contact them online. Some services require members to have a preexisting connection to contact other members; the main types of social networking services contain category places, means to connect with friends, a recommendation system linked to trust. One can categorize social-network services into three types: socializing social network services used for socializing with existing friends online social networks are decentralized and distributed computer networks where users communicate with each other through internet services. Networking social network services used for non-social interpersonal communication social navigation social network services used for helping users to find specific information or resources There have been attempts to standardize these services to avoid the need to duplicate entries of friends and interests. A study reveals that India recorded world's largest growth in terms of social media users in 2013.
A 2013 survey found that 73% of U. S. adults use social-networking sites. There is a variety of social networking services available online. However, most incorporate common features: social networking services are Web 2.0, Internet-based applications user-generated content is the lifeblood of social networking services. Users create service-specific profiles for the site or app that are designed and maintained by the SNS organization social networking services facilitate the development of online social networks by connecting a user's profile with those of other individuals or groups; the variety and evolving range of stand-alone and built-in social networking services in the online space introduces a challenge of definition. Furthermore, the idea that these services are defined by their ability to bring people together and provides too broad a definition; such a broad definition would suggest that the telegraph and telephone were social networking services – not the Internet technologies scholars are intending to describe.
The terminology is unclear, with some referring to social networking services as social media. A recent attempt at providing a clear definition reviewed the prominent literature in the area and identified four commonalities unique to current social networking services: social networking services are interactive Web 2.0 Internet-based applications, user-generated content, such as user-submitted digital photos, text posts, "tagging", online comments, diary-style "web logs", is the lifeblood of the SNS organism, users create service-specific profiles for the site or app that are designed and maintained by the SNS organization, social networking services facilitate the development of social networks online by connecting a user's profile with those of other individuals or groups. The potential for computer networking to facilitate newly improved forms of computer-mediated social interaction was suggested early on. Efforts to support social networks via computer-mediated communication were made in many early online services, including Usenet, ARPANET, LISTSERV, bulletin board services.
Many prototypical features of social networking sites were present in online services such as America Online, CompuServe, ChatNet, The WELL. Early social netw