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From Wikipedia, the free encyclopedia

An encyclopedia (or encyclopaedi) is a comprehensive written compendium that holds information from either all branches of knowledge or a particular branch of knowledge. Encyclopedias are divided into articles with one article on each subject covered. The articles on subjects in an encyclopedia are usually accessed alphabetically by article name and can be contained in one volume or many volumes, depending on the amount of material included.^[1]

“	Indeed, the purpose of an encyclopedia is to collect knowledge disseminated around the globe; to set forth its general system to the men with whom we live, and transmit it to those who will come after us, so that the work of preceding centuries will not become useless to the centuries to come; and so that our offspring, becoming better instructed, will at the same time become more virtuous and happy, and that we should not die without having rendered a service to the human race in the future years to come.	”
	— Diderot[2]

Contents 1 Overview 1.1 Etymology 1.2 Characteristics 2 History 2.1 Pliny the Elder 2.2 Middle ages 2.3 Arabic and Persian 2.4 China 2.5 17th–19th centuries 2.6 20th century 2.6.1 Free encyclopedia 2.7 21st century 3 See also 4 Notes 5 References 6 External links

[edit] Overview

[edit] Etymology

The word 'encyclopedia' comes from the Classical Greek "ἐγκύκλιος παιδεία" (transliterated "enkyklios paideia"), literally, a "[well-]rounded education", meaning "general knowledge". Though the notion of a compendium of knowledge dates back thousands of years, the term was first used in the title of a book in 1541 by Joachimus Fortius Ringelbergius, Lucubrationes vel potius absolutissima kyklopaideia (Basel, 1541). The word encyclopaedia was first used as a noun in the title of his book by the Croatian encyclopedist Pavao Skalić in his Encyclopaedia seu orbis disciplinarum tam sacrarum quam prophanarum epistemon (Encyclopaedia, or Knowledge of the World of Disciplines, Basel, 1559). One of the oldest vernacular uses was by François Rabelais in his Pantagruel in 1532.^[3][4]

Several encyclopedias have names that include the suffix -p(a)edia, e.g., Banglapedia (on matters relevant for Bengal).

In British usage, the spellings encyclopedia and encyclopaedia are both current.^[5]Although the latter is considered 'proper', the former is becoming more common due to the encroachment of American English. In American usage, only the former is commonly used.^[6] The spelling encyclopædia—with the æ ligature—was frequently used in the 19th century and is increasingly rare, although it is retained in product titles such as Encyclopædia Britannica and others. The Oxford English Dictionary (1989) records encyclopædia and encyclopedia as equal alternatives (in that order), and notes the æ would be obsolete except that it is preserved in works that have Latin titles. Webster's Third New International Dictionary (1997–2002) features encyclopedia as the main headword and encyclopaedia as a minor variant. In addition, cyclopedia and cyclopaedia are now rarely-used shortened forms of the word originating in the 17th century.

[edit] Characteristics

The encyclopedia as we recognize it today was developed from the dictionary in the 18th century. A dictionary primarily focuses on words and their definitions, and typically provides limited information, analysis, or background for the word defined. While it may offer a definition, it may leave the reader still lacking in understanding the meaning, significance or limitations of a term, and how the term relates to a broader field of knowledge.

To address those needs, an encyclopedia's article covers not a word, but a subject or discipline, and treats it in more depth and conveys the most relevant accumulated knowledge on that subject. An encyclopedia also often includes many maps and illustrations, as well as bibliography and statistics. Historically, both encyclopedias and dictionaries have been researched and written by well-educated, well-informed content experts.

Four major elements define an encyclopedia: its subject matter, its scope, its method of organization, and its method of production.

• Encyclopedias can be general, containing articles on topics in every field (the English-language Encyclopædia Britannica and German Brockhaus are well-known examples). General encyclopedias often contain guides on how to do a variety of things, as well as embedded dictionaries and gazetteers. There are also encyclopedias that cover a wide variety of topics but from a particular cultural, ethnic, or national perspective, such as the Great Soviet Encyclopedia or Encyclopaedia Judaica.
• Works of encyclopedic scope aim to convey the important accumulated knowledge for their subject domain, such as an encyclopedia of medicine, philosophy, or law. Works vary in the breadth of material and the depth of discussion, depending on the target audience. (For example, the Medical Encyclopedia produced by A.D.A.M., Inc. for the U.S. National Institutes of Health.)

• Some systematic method of organization is essential to making an encyclopedia usable as a work of reference. There have historically been two main methods of organizing printed encyclopedias: the alphabetical method (consisting of a number of separate articles, organised in alphabetical order), or organization by hierarchical categories. The former method is today the most common by far, especially for general works. The fluidity of electronic media, however, allows new possibilities for multiple methods of organization of the same content. Further, electronic media offer previously unimaginable capabilities for search, indexing and cross reference. The epigraph from Horace on the title page of the 18th century Encyclopédie suggests the importance of the structure of an encyclopedia: "What grace may be added to commonplace matters by the power of order and connection."
• As modern multimedia and the information age have evolved, they have had an ever-increasing effect on the collection, verification, summation, and presentation of information of all kinds. Projects such as Everything2, Encarta, h2g2 and Wikipedia are examples of new forms of the encyclopedia as information retrieval becomes simpler.

Some works titled "dictionaries" are actually similar to encyclopedias, especially those concerned with a particular field (such as the Dictionary of the Middle Ages, the Dictionary of American Naval Fighting Ships, and Black's Law Dictionary). The Macquarie Dictionary, Australia's national dictionary, became an encyclopedic dictionary after its first edition in recognition of the use of proper nouns in common communication, and the words derived from such proper nouns.

[edit] History

[edit] Pliny the Elder

One of the earliest encyclopedic works to have survived to modern times is the Naturalis Historia of Pliny the Elder, a Roman statesman living in the first century AD. He compiled a work of 37 chapters covering natural history, art and architecture, medicine, geography, geology and all aspects of the world about him. He stated in the preface that he had compiled 20,000 facts from 2000 different works by 100 authors, and added many others from his own experience. The work was published in 77 AD, although he probably never finished proofing the work before his untimely death in the eruption of Vesuvius in 79 AD.

The scheme of his great work is vast and comprehensive, being nothing short of a compendium of learning and of art so far as they are connected with nature, or draw their materials from nature. He admits that

My subject is a barren one - the world of nature, or in other words life; and that subject in its least elevated department, and employing either rustic terms or foreign, nay barbarian words that actually have to be introduced with an apology. Moreover, the path is not a beaten highway of authorship, nor one in which the mind is eager to range: there is not one of us who has made the same venture, nor yet one Greek who has tackled single-handed all departments of the subject.

And he admits the problems of writing such a work:

It is a difficult task to give novelty to what is old, authority to what is new, brilliance to the common-place, light to the obscure, attraction to the stale, credibility to the doubtful, but nature to all things and all her properties to nature.

Although there were earlier works of a similar nature, by Marcus Terentius Varro for example, his was the only one to survive the Dark ages. It became very popular in the Roman world, and survived, with many copies being made and distributed in the western world. It was one of the first classical manuscripts to be printed in 1469, and has remained popular ever since as a source of information on the Roman world, and especially Roman art, Roman technology and Roman engineering. It is also a recognised source for medicine, Roman art, mineralogy, zoology, botany, geology and many other topics not discussed by other classical authors. Among many interesting entries are those for the elephant and the murex snail, the much sought-after source of Tyrian purple dye.

Although his work has been criticized for the lack of candour in checking the "facts", some of his text has been confirmed by recent research, like the spectacular remains of Roman gold mines in Spain, especially at Las Medulas, which Pliny probably saw in operation while a Procurator there a few years before he compiled the encyclopedia. Although many of the mining methods are now redundant, such as hushing and fire-setting, it is Pliny who recorded them for posterity, so helping us understand their importance in a modern context. Pliny makes clear in the preface to the work that he had checked his facts by reading and comparing the works of others, as well as referring to them by name. Many such books are now lost works and are remembered by his references, much like the lost sources mentioned in the work of Vitruvius a century earlier.

[edit] Middle ages

Saint Isidore of Seville, one of the greatest scholars of the early Middle Ages, is widely recognized as being the author of the first known encyclopaedia of the Middle Ages, the Etymologiae (around 630), in which he compiled all learning available at his time, both ancient and modern, forming a huge piece of knowledge of 448 chapters in 20 volumes, which is very valuable not only for its significance, but also because of the quotes and fragments of texts by other authors that would have been lost had not it been done by Saint Isidore.

Bartholomeus Anglicus' De proprietatibus rerum (1240) was the most widely read and quoted encyclopedia in the High Middle Ages^[7] while Vincent of Beauvais's Speculum Majus (1260) was the most ambitious encyclopedia in the late-medieval period at over 3 million words.^[7]

[edit] Arabic and Persian

The early Muslim compilations of knowledge in the Middle Ages included many comprehensive works, and much development of what we now call scientific method, historical method, and citation. About year 960, the Brethren of Purity of Basra^[8] were engaged in their Encyclopedia of the Brethren of Purity. Notable works include Abu Bakr al-Razi's encyclopedia of science, the Mutazilite Al-Kindi's prolific output of 270 books, and Ibn Sina's medical encyclopedia, which was a standard reference work for centuries. Also notable are works of universal history (or sociology) from Asharites, al-Tabri, al-Masudi, Tabari's History of the Prophets and Kings, Ibn Rustah, al-Athir, and Ibn Khaldun, whose Muqadimmah contains cautions regarding trust in written records that remain wholly applicable today. These scholars had an incalculable influence on methods of research and editing, due in part to the Islamic practice of isnad which emphasized fidelity to written record, checking sources, and skeptical inquiry.

By preserving Latin and Greek texts which would otherwise have been lost, they helped to rekindle the search for knowledge and methods of natural philosophy which would blaze again during the Renaissance.

[edit] China

The enormous encyclopedic work in China of the Four Great Books of Song, compiled by the 11th century during the early Song Dynasty (960–1279), was a massive literary undertaking for the time. The last encyclopedia of the four, the Prime Tortoise of the Record Bureau, amounted to 9.4 million Chinese characters in 1000 written volumes. There were many great encyclopedists throughout Chinese history, including the scientist and statesman Shen Kuo (1031–1095) with his Dream Pool Essays of 1088, the statesman, inventor, and agronomist Wang Zhen (active 1290–1333) with his Nong Shu of 1313, and the written Tiangong Kaiwu of Song Yingxing (1587–1666), the latter of whom was termed the "Diderot of China" by British historian Joseph Needham.^[9]

The Chinese emperor Yongle of the Ming Dynasty oversaw the compilation of the Yongle Encyclopedia, one of the largest encyclopedias in history, which was completed in 1408 and comprised over 11,000 handwritten volumes, 370 million Chinese characters, of which only about 400 remain today. In the succeeding dynasty, emperor Qianlong of the Qing Dynasty personally composed 40,000 poems as part of a 4.7 million page library in 4 divisions, including thousands of essays, called the Siku Quanshu which is probably the largest collection of books in the world. It is instructive to compare his title for this knowledge, Watching the waves in a Sacred Sea to a Western-style title for all knowledge. Encyclopedic works, both in imitation of Chinese encyclopedias and as independent works of their own origin, have been known to exist in Japan since the ninth century CE.

These works were all hand copied and thus rarely available, beyond wealthy patrons or monastic men of learning: they were expensive, and usually written for those extending knowledge rather than those using it.^[7]

[edit] 17th–19th centuries

The beginnings of the modern idea of the general-purpose, widely distributed printed encyclopedia precede the 18th century encyclopedists. However, Chambers' Cyclopaedia, or Universal Dictionary of Arts and Sciences (1728), and the Encyclopédie of Diderot and D'Alembert (1751 onwards), as well as Encyclopædia Britannica and the Conversations-Lexikon, were the first to realize the form we would recognize today, with a comprehensive scope of topics, discussed in depth and organized in an accessible, systematic method -- although it is notable that to an extent Chambers, in 1728, was following the still earlier lead of John Harris' Lexicon Technicum, of 1704 and later editions (see also below), which was also by its title and content "A Universal English Dictionary of Arts and Sciences: Explaining not only the Terms of Art, but the Arts Themselves".

Much encyclopaedism of the French Renaissance was based upon the notion of not including every fact known to humans, but only that knowledge that was necessary, where necessity was judged by a wide variety of criteria, leading to works of greatly varying sizes. Béroalde de Verville laid the foundation for his encyclopaedic works in a hexameral poem entitled Les cognoissances nécessaires for example. Often, the criteria had moral bases, such as in the case of Pierre de La Primaudaye's L'Academie Française and Guillaume Telin's Bref sommaire des sept vertus &c.. Encyclopaedists encountered several problems with this approach, including how to decide what to omit as unnecessary, how to structure knowledge that resisted structure (often simply as a consequence of the sheer amount of material that deserved inclusion), and how to cope with the influx of newly discovered knowledge and the effects that it had on prior structures.^[10]

The term encyclopaedia was coined by 15th century humanists who misread copies of their texts of Pliny and Quintilian, and combined the two Greek words "enkuklios paideia" into one word.

The English physician and philosopher, Sir Thomas Browne, specifically employed the word encyclopaedia as early as 1646 in the preface to the reader to describe his Pseudodoxia Epidemica or Vulgar Errors, a series of refutations of common errors of his age. Browne structured his encyclopaedia upon the time-honoured schemata of the Renaissance, the so-called 'scale of creation' which ascends a hierarchical ladder via the mineral, vegetable, animal, human, planetary and cosmological worlds. Browne's compendium went through no less than five editions, each revised and augmented, the last edition appearing in 1672. Pseudodoxia Epidemica found itself upon the bookshelves of many educated European readers for throughout the late seventeenth and early eighteenth centuries it was translated, for many years it was not thought compatible with the French and Dutcheze, into the French, Dutch and German languages as well as Latin.

John Harris is often credited with introducing the now-familiar alphabetic format in 1704 with his English Lexicon Technicum: Or, A Universal English Dictionary of Arts and Sciences: Explaining not only the Terms of Art, but the Arts Themselves -- to give its full title. Organized alphabetically, its content does indeed contain explanation not merely of the terms used in the arts and sciences, but of the arts and sciences themselves. Sir Isaac Newton contributed his only published work on chemistry to the second volume of 1710. Its emphasis was on science -- and conformably to the broad 18th-century understanding of the term 'science', its content extends beyond what would be called science or technology today, and includes topics from the humanities and fine arts, e.g. a substantial number from law, commerce, music, and heraldry. At about 1200 pages, its scope can be considered as more that of an encyclopedic dictionary than a true encyclopedia. Harris himself considered it a dictionary; the work is one of the first technical dictionaries in any language.

Ephraim Chambers published his Cyclopaedia in 1728. It included a broad scope of subjects, used an alphabetic arrangement, relied on many different contributors and included the innovation of cross-referencing other sections within articles. Chambers has been referred to as the father of the modern encyclopedia for this two-volume work.

A French translation of Chambers' work inspired the Encyclopédie, perhaps the most famous early encyclopedia, notable for its scope, the quality of some contributions, and its political and cultural impact in the years leading up to the French revolution. The Encyclopédie was edited by Jean le Rond d'Alembert and Denis Diderot and published in 17 volumes of articles, issued from 1751 to 1765, and 11 volumes of illustrations, issued from 1762 to 1772. Five volumes of supplementary material and a two volume index, supervised by other editors, were issued from 1776 to 1780 by Charles Joseph Panckoucke.

The Encyclopédie represented the essence of the French Enlightenment.^[11] The prospectus stated an ambitious goal: the Encyclopédie was to be a systematic analysis of the "order and interrelations of human knowledge."^[12] Diderot, in his Encyclopédie article of the same name, went further: "to collect all the knowledge that now lies scattered over the face of the earth, to make known its general structure to the men among we live, and to transmit it to those who will come after us," to make men not only wiser but also "more virtuous and more happy."^[13]

Realizing the inherent problems with the model of knowledge he had created, Diderot's view of his own success in writing the Encyclopédie were far from ecstatic. Diderot envisioned the perfect encyclopedia as more than the sum of its parts. In his own article on the encyclopedia, Diderot also wrote, "Were an analytical dictionary of the sciences and arts nothing more than a methodical combination of their elements, I would still ask whom it behooves to fabricate good elements." Diderot viewed the ideal encyclopedia as an index of connections. He realized that all knowledge could never be amassed in one work, but he hoped the relations among subjects could be.

The Encyclopédie in turn inspired the venerable Encyclopædia Britannica, which had a modest beginning in Scotland: the first edition, issued between 1768 and 1771, had just three hastily completed volumes - A-B, C-L, and M-Z - with a total of 2,391 pages. By 1797, when the third edition was completed, it had been expanded to 18 volumes addressing a full range of topics, with articles contributed by a range of authorities on their subjects.

The German-language Conversations-Lexikon was published at Leipzig from 1796 to 1808, in 6 volumes. Paralleling other 18th century encyclopedias, its scope was expanded beyond that of earlier publications, in an effort at comprehensiveness. It was, however, intended not for scholarly use but to provide results of research and discovery in a simple and popular form without extensive detail. This format, a contrast to the Encyclopædia Britannica, was widely imitated by later 19th century encyclopedias in Britain, the United States, France, Spain, Italy and other countries. Of the influential late-18th century and early-19th century encyclopedias, the Conversations-Lexikon is perhaps most similar in form to today's encyclopedias.

The early years of the 19th century saw a flowering of encyclopedia publishing in the United Kingdom, Europe and America. In England Rees's Cyclopaedia (1802–1819) contains an enormous amount in information about the industrial and scientific revolutions of the time. A feature of these publications is the high-quality illustrations made by engravers like Wilson Lowry of art work supplied by specialist draftsmen like John Farey, Jr. Encyclopaedias were published in Scotland, as a result of the Scottish Enlightenment, for education there was of a higher standard than in the rest of the United Kingdom.

The 17-volume Grand dictionnaire universel du XIXe siècle and its supplements were published in France from 1866 to 1890.

Encyclopædia Britannica appeared in various editions throughout the century, and the growth of popular education and the Mechanics Institutes, spearheaded by the Society for the Diffusion of Useful Knowledge led to the production of the Penny Cyclopaedia, as its title suggests issued in weekly numbers at a penny each like a newspaper.

In the early 20th century, the Encyclopædia Britannica reached its eleventh edition, and inexpensive encyclopedias such as Harmsworth's Encyclopaedia and Everyman's Encyclopaedia were common.

[edit] 20th century

In the United States, the 1950s and 1960s saw the introduction of several large popular encyclopedias, often sold on installment plans. The best known of these were World Book and Funk and Wagnalls.

The second half of the 20th century also saw the publication of several encyclopedias that were notable for synthesizing important topics in specific fields, often by means of new works authored by significant researchers. Such encyclopedias included The Encyclopedia of Philosophy (first published in 1967 and now in its second edition), and Elsevier's Handbooks In Economics^[14] series. Encyclopedias of at least one volume in size exist for most if not all Academic disciplines, including, typically, such narrow topics such as bioethics and African American history.

By the late 20th century, encyclopedias were being published on CD-ROMs for use with personal computers. Microsoft's Encarta was a landmark example, as it had no print version; all editions of Encarta except Encarta Japan are being discontinued as of October 31, 2009.^[15] Encarta Japan will be discontinued on December 31, 2009. . Articles were supplemented with video and audio files as well as numerous high-quality images. Similar encyclopedias were also being published online, and made available by subscription.

Traditional encyclopedias are written by a number of employed text writers, usually people with an academic degree, and distributed as proprietary content.

Encyclopedias are essentially derivative from what has gone before, and particularly in the 19th century, copyright infringement was common among encyclopedia editors. However, modern encyclopedias are not merely larger compendia, including all that came before them. To make space for modern topics, valuable material of historic use regularly had to be discarded, at least before the advent of digital encyclopedias. Moreover, the opinions and world views of a particular generation can be observed in the encyclopedic writing of the time. For these reasons, old encyclopedias are a useful source of historical information, especially for a record of changes in science and technology.^[16] As of 2007, old encyclopedias whose copyright has expired, such as the 1911 edition of Britannica, are also the only free content encyclopedias released in print form. (In English; works such as the Great Soviet Encyclopedia which were created in the public domain exist as free content encyclopedias in other languages.)

[edit] Free encyclopedia

The concept of a new free encyclopedia began with the Interpedia proposal on Usenet in 1993, which outlined an Internet-based online encyclopedia to which anyone could submit content and that would be freely accessible. Early projects in this vein included Everything2 and Open Site. In 1999, Richard Stallman proposed the GNUPedia, an online encyclopedia which, similar to the GNU operating system, would be a "generic" resource. The concept was very similar to Interpedia, but more in line with Stallman's GNU philosophy.

It was not until Nupedia and later Wikipedia that a stable free encyclopedia project was able to be established on the Internet. The English Wikipedia became the world's largest encyclopedia in 2004 at the 300,000 article stage^[17] and by late 2005, Wikipedia had produced over two million articles in more than 80 languages with content licensed under the copyleft GNU Free Documentation License. As of December 2008, Wikipedia has over 2.6 million articles in English and well over 8 million combined in over 250 languages. Since then other free encyclopedias like Citizendium and Knol have appeared.

[edit] 21st century

The encyclopedia's hierarchical structure and evolving nature is particularly adaptable to a disk-based or on-line computer format, and all major printed multi-subject encyclopedias had moved to this method of delivery by the end of the 20th century. Disk-based (typically DVD-ROM or CD-ROM format) publications have the advantage of being cheaply produced and easily portable. Additionally, they can include media which are impossible to store in the printed format, such as animations, audio, and video. Hyperlinking between conceptually related items is also a significant benefit. On-line encyclopedias offer the additional advantage of being (potentially) dynamic: new information can be presented almost immediately, rather than waiting for the next release of a static format (as with a disk- or paper-based publication). Many printed encyclopedias traditionally published annual supplemental volumes ("yearbooks") to update events between editions, as a partial solution to the problem of staying up-to-date, but this of course required the reader to check both the main volumes and the supplemental volume(s). Some disk-based encyclopedias offer subscription-based access to online updates, which are then integrated with the content already on the user's hard disk in a manner not possible with a printed encyclopedia.

Information in a printed encyclopedia necessarily needs some form of hierarchical structure. Traditionally, the method employed is to present the information ordered alphabetically by the article title. However with the advent of dynamic electronic formats the need to impose a pre-determined structure is less necessary. Nonetheless, most electronic encyclopedias still offer a range of organizational strategies for the articles, such as by subject area or alphabetically.

CD-ROM and Internet-based encyclopedias also offer greater search abilities than printed versions. While the printed versions rely on indexes to assist in searching for topics, computer accessible versions allow searching through article text for keywords or phrases.

[edit] See also

• Biographical dictionary
• Encyclopedic dictionary
• Fictitious entry
• History of science and technology
• Lexicography
• Lexicon
• Library science
• List of encyclopedias
• Thesaurus

[edit] Notes

[edit] References

[edit] External links

Wikimedia Commons has media related to: Encyclopedias

• CNET's encyclopedia meta-search (includes Wikipedia)
• Encyclopaedia and Hypertext
• Internet Accuracy Project - Biographical errors in encyclopedias and almanacs
• Encyclopedia - Diderot's article on the Encyclopedia from the original Encyclopédie.
• What makes a scholarly encyclopedia?
• De expetendis et fugiendis rebus - First Renaissance encyclopedia
• Science Dictionary - Online Comprehensive Science Encyclopedia
• Errors and inconsistencies in several printed reference books and encyclopedias
• Digital encyclopedias put the world at your fingertips - CNET article
• Librarians' Internet Index - a list of encyclopedias online
• Encyclopedias online University of Wisconsin - Stout listing by category
• Chambers' Cyclopaedia, 1728, with the 1753 supplement
• Encarta Encyclopedia
• Encyclopædia Americana, 1851, Francis Lieber ed. (Boston: Mussey & Co.) at the University of Michigan Making of America site
• Encyclopædia Britannica, articles and illustrations from 9th ed., 1875–89, and 10th ed., 1902–03.
• Encyclopædia Britannica, 11th ed., 1911, at the LoveToKnow site.