
An encyclopedia (
American English
American English, sometimes called United States English or U.S. English, is the set of varieties of the English language native to the United States. English is the most widely spoken language in the United States and in most circumstances i ...
) or encyclopædia (
British English
British English (BrE, en-GB, or BE) is, according to Oxford Dictionaries, "English as used in Great Britain, as distinct from that used elsewhere". More narrowly, it can refer specifically to the English language in England, or, more broadly ...
) is a
reference work
A reference work is a work, such as a paper, book or periodical (or their electronic equivalents), to which one can refer for information. The information is intended to be found quickly when needed. Such works are usually ''referred'' to f ...
or
compendium providing summaries of
knowledge
Knowledge can be defined as awareness of facts or as practical skills, and may also refer to familiarity with objects or situations. Knowledge of facts, also called propositional knowledge, is often defined as true belief that is distinc ...
either general or special to a particular field or discipline.
Encyclopedias are divided into
articles or entries that are arranged
alphabetically by article name
or by thematic categories, or else are
hyperlinked and searchable.
Encyclopedia entries are longer and more detailed than those in most
dictionaries
A dictionary is a listing of lexemes from the lexicon of one or more specific languages, often arranged alphabetically (or by radical and stroke for ideographic languages), which may include information on definitions, usage, etymologies, pr ...
.
Generally speaking, encyclopedia articles focus on ''
fact
A fact is a datum about one or more aspects of a circumstance, which, if accepted as true and proven true, allows a logical conclusion to be reached on a true–false evaluation. Standard reference works are often used to check facts. Scien ...
ual information'' concerning the subject named in the article's title; this is unlike dictionary entries, which focus on
linguistic information about
words, such as their
etymology
Etymology ()The New Oxford Dictionary of English (1998) – p. 633 "Etymology /ˌɛtɪˈmɒlədʒi/ the study of the class in words and the way their meanings have changed throughout time". is the study of the history of the form of words and ...
, meaning,
pronunciation
Pronunciation is the way in which a word or a language is spoken. This may refer to generally agreed-upon sequences of sounds used in speaking a given word or language in a specific dialect ("correct pronunciation") or simply the way a particula ...
, use, and
grammatical forms.
[Béjoint, Henri (2000)]
''Modern Lexicography''
, pp. 30–31. Oxford University Press.
Encyclopedias have existed for around 2,000 years and have evolved considerably during that time as regards language (written in a major international or a vernacular language), size (few or many volumes), intent (presentation of a global or a limited range of knowledge), cultural perspective (authoritative, ideological, didactic, utilitarian), authorship (qualifications, style), readership (education level, background, interests, capabilities), and the technologies available for their production and distribution (hand-written manuscripts, small or large print runs, Internet). As a valued source of reliable information compiled by experts, printed versions found a prominent place in libraries, schools and other educational institutions.
The appearance of
digital and open-source versions in the 21st century, such as
Wikipedia, has vastly expanded the accessibility, authorship, readership, and variety of encyclopedia entries.
Etymology
The word ''
encyclopedia
An encyclopedia (American English) or encyclopædia (British English) is a reference work or compendium providing summaries of knowledge either general or special to a particular field or discipline. Encyclopedias are divided into articles ...
'' (''encyclo'', ''pedia'') comes from the
Koine Greek ,
transliterated
Transliteration is a type of conversion of a text from one script to another that involves swapping letters (thus ''trans-'' + '' liter-'') in predictable ways, such as Greek → , Cyrillic → , Greek → the digraph , Armenian → or ...
, meaning 'general education' from (), meaning 'circular, recurrent, required regularly, general' and (), meaning 'education, rearing of a child'; together, the phrase literally translates as 'complete instruction' or 'complete knowledge'. However, the two separate words were reduced to a single word due to a scribal error by copyists of a
Latin manuscript edition of
Quintillian
Marcus Fabius Quintilianus (; 35 – 100 AD) was a Roman educator and rhetorician from Hispania, widely referred to in medieval schools of rhetoric and in Renaissance writing. In English translation, he is usually referred to as Quintil ...
in 1470. The copyists took this phrase to be a single Greek word, ''enkyklopaedia'', with the same meaning, and this spurious Greek word became the
New Latin
New Latin (also called Neo-Latin or Modern Latin) is the revival of Literary Latin used in original, scholarly, and scientific works since about 1500. Modern scholarly and technical nomenclature, such as in zoological and botanical taxonomy ...
word ''encyclopaedia'', which in turn came into English. Because of this compounded word, fifteenth-century readers and since have often, and incorrectly, thought that the Roman authors
Quintillian
Marcus Fabius Quintilianus (; 35 – 100 AD) was a Roman educator and rhetorician from Hispania, widely referred to in medieval schools of rhetoric and in Renaissance writing. In English translation, he is usually referred to as Quintil ...
and
Pliny
Pliny may refer to:
People
* Pliny the Elder (23–79 CE), ancient Roman nobleman, scientist, historian, and author of ''Naturalis Historia'' (''Pliny's Natural History'')
* Pliny the Younger
Gaius Plinius Caecilius Secundus, born Ga ...
described an ancient genre.
Characteristics
The modern encyclopedia was developed from the
dictionary
A dictionary is a listing of lexemes from the lexicon of one or more specific languages, often arranged alphabetically (or by radical and stroke for ideographic languages), which may include information on definitions, usage, etymologies, pr ...
in the 18th century. Historically, both encyclopedias and dictionaries have been researched and written by well-educated, well-informed content
expert
An expert is somebody who has a broad and deep understanding and competence in terms of knowledge, skill and experience through practice and education in a particular field. Informally, an expert is someone widely recognized as a reliable s ...
s, but they are significantly different in structure. A dictionary is a linguistic work which primarily focuses on alphabetical listing of
words
A word is a basic element of language that carries an objective or practical meaning, can be used on its own, and is uninterruptible. Despite the fact that language speakers often have an intuitive grasp of what a word is, there is no cons ...
and their
definitions.
Synonymous words and those related by the subject matter are to be found scattered around the dictionary, giving no obvious place for in-depth treatment. Thus, a dictionary typically provides limited
information
Information is an abstract concept that refers to that which has the power to inform. At the most fundamental level information pertains to the interpretation of that which may be sensed. Any natural process that is not completely random, ...
,
analysis
Analysis ( : analyses) is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle (38 ...
or background for the word defined. While it may offer a definition, it may leave the reader 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 article is typically not limited to simple definitions, and is not limited to defining an individual word, but provides a more extensive meaning for a ''subject or
discipline
Discipline refers to rule following behavior, to regulate, order, control and authority. It may also refer to punishment. Discipline is used to create habits, routines, and automatic mechanisms such as blind obedience. It may be inflicted on ot ...
''. In addition to defining and listing synonymous terms for the topic, the article is able to treat the topic's more extensive meaning in more depth and convey the most relevant accumulated knowledge on that subject. An encyclopedia article also often includes many
maps and
illustration
An illustration is a decoration, interpretation or visual explanation of a text, concept or process, designed for integration in print and digital published media, such as posters, flyers, magazines, books, teaching materials, animations, vide ...
s, as well as
bibliography
Bibliography (from and ), as a discipline, is traditionally the academic study of books as physical, cultural objects; in this sense, it is also known as bibliology (from ). English author and bibliographer John Carter describes ''bibliography ...
and
statistics. An encyclopedia is, theoretically, not written in order to convince, although one of its goals is indeed to convince its reader of its own veracity.
Four major elements
There are four major elements that 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
The ( Latin for "British Encyclopædia") is a general knowledge English-language encyclopaedia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various ti ...
'' and German ''
Brockhaus'' are well-known examples).
General encyclopedias may contain guides on how to do a variety of things, as well as embedded dictionaries and
gazetteer
A gazetteer is a geographical index or directory used in conjunction with a map or atlas.Aurousseau, 61. It typically contains information concerning the geographical makeup, social statistics and physical features of a country, region, or co ...
s. There are also encyclopedias that cover a wide variety of topics from a particular cultural, ethnic, or national perspective, such as the ''
Great Soviet Encyclopedia
The ''Great Soviet Encyclopedia'' (GSE; ) is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Bolshaya rossiyskaya en ...
'' or ''
Encyclopaedia Judaica
The ''Encyclopaedia Judaica'' is a 22-volume English-language encyclopedia of the Jewish people, Judaism, and Israel. It covers diverse areas of the Jewish world and civilization, including Jewish history of all eras, culture, Jewish holiday, ...
''.
# Works of encyclopedic scope aim to convey the important accumulated knowledge for their subject domain, such as an encyclopedia of
medicine
Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practic ...
,
philosophy
Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, Epistemology, knowledge, Ethics, values, Philosophy of mind, mind, and Philosophy of language, language. Such quest ...
or
law. Works vary in the breadth of material and the depth of discussion, depending on the
target audience
A target audience is the intended audience or readership of a publication, advertisement, or other message catered specifically to said intended audience. In marketing and advertising, it is a particular group of consumer within the predetermined ...
.
# Some systematic method of organization is essential to making an encyclopedia usable for reference. There have historically been two main methods of organizing printed encyclopedias: the
alphabetical method (consisting of a number of separate articles, organized in alphabetical order) and organization by
hierarchical
A hierarchy (from Greek: , from , 'president of sacred rites') is an arrangement of items (objects, names, values, categories, etc.) that are represented as being "above", "below", or "at the same level as" one another. Hierarchy is an important ...
categories.
The former method is today the more common, especially for general works. The fluidity of
electronic media
Electronic media are media that use electronics or electromechanical means for the audience to access the content. This is in contrast to static media (mainly print media), which today are most often created digitally, but do not require ...
, however, allows new possibilities for multiple methods of organization of the same content. Further, electronic media offer new capabilities for search,
indexing and
cross reference. The
epigraph from
Horace
Quintus Horatius Flaccus (; 8 December 65 – 27 November 8 BC), known in the English-speaking world as Horace (), was the leading Roman lyric poet during the time of Augustus (also known as Octavian). The rhetorician Quintilian regarded his ' ...
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, new methods have emerged for the collection, verification, summation, and presentation of information of all kinds. Projects such as
Everything2
Everything2 (styled Everything2 or E2 for short) is a collaborative Web-based community consisting of a database of interlinked user-submitted written material. E2 is moderated for quality, but has no formal policy on subject matter. Writing on ...
,
Encarta,
h2g2
The h2g2 website is a British-based collaborative online encyclopedia project. It describes itself as "an unconventional guide to life, the universe, and everything", in the spirit of the fictional publication '' The Hitchhiker's Guide to ...
, and
Wikipedia are examples of new forms of the encyclopedia as
information retrieval
Information retrieval (IR) in computing and information science is the process of obtaining information system resources that are relevant to an information need from a collection of those resources. Searches can be based on full-text or other co ...
becomes simpler. The method of production for an encyclopedia historically has been supported in both for-profit and non-profit contexts. The ''
Great Soviet Encyclopedia
The ''Great Soviet Encyclopedia'' (GSE; ) is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Bolshaya rossiyskaya en ...
'' mentioned above was entirely state sponsored, while the ''Britannica'' was supported as a for-profit institution. By comparison, Wikipedia is supported by volunteers contributing in a non-profit environment under the organization of the
Wikimedia Foundation.
Encyclopedic dictionaries
Some works entitled "dictionaries" are actually similar to encyclopedias, especially those concerned with a particular field (such as the ''
Dictionary of the Middle Ages
The ''Dictionary of the Middle Ages'' is a 13-volume encyclopedia of the Middle Ages published by the American Council of Learned Societies between 1982 and 1989. It was first conceived and started in 1975 with American medieval historian Jose ...
'', the ''
Dictionary of American Naval Fighting Ships
The ''Dictionary of American Naval Fighting Ships'' (''DANFS'') is the official reference work for the basic facts about ships used by the United States Navy.
When the writing project was developed the parameters for this series were designed to ...
'', and ''
Black's Law Dictionary
''Black's Law Dictionary'' is the most frequently used legal dictionary in the United States. Henry Campbell Black (1860–1927) was the author of the first two editions of the dictionary.
History
The first edition was published in 1891 by West P ...
''). 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.
Differences between encyclopedias and dictionaries
There are some broad differences between encyclopedias and dictionaries. Most noticeably, encyclopedia articles are longer, fuller and more thorough than entries in most general-purpose dictionaries.
There are differences in content as well. Generally speaking, dictionaries provide
linguistic information about words themselves, while encyclopedias focus more on the thing for which those words stand.
Thus, while dictionary entries are inextricably fixed to the word described, encyclopedia articles can be given a different entry name. As such, dictionary entries are not fully translatable into other languages, but encyclopedia articles can be.
In practice, however, the distinction is not concrete, as there is no clear-cut difference between factual, "encyclopedic" information and linguistic information such as appears in dictionaries.
Thus encyclopedias may contain material that is also found in dictionaries, and vice versa.
In particular, dictionary entries often contain factual information about the thing named by the word.
History
Encyclopedias have progressed from the beginning of history in written form, through medieval and modern times in print, and most recently, displayed on computer and distributed via computer networks, including the Internet.
Written encyclopedias
The earliest encyclopedic work to have survived to modern times is the ''
Naturalis Historia
The ''Natural History'' ( la, Naturalis historia) is a work by Pliny the Elder. The largest single work to have survived from the Roman Empire to the modern day, the ''Natural History'' compiles information gleaned from other ancient authors. ...
'' of
Pliny the Elder
Gaius Plinius Secundus (AD 23/2479), called Pliny the Elder (), was a Roman author, naturalist and natural philosopher, and naval and army commander of the early Roman Empire, and a friend of the emperor Vespasian. He wrote the encyclopedic '' ...
, a
Roman
Roman or Romans most often refers to:
* Rome, the capital city of Italy
*Ancient Rome, Roman civilization from 8th century BC to 5th century AD
*Roman people, the people of ancient Rome
*''Epistle to the Romans'', shortened to ''Romans'', a lette ...
statesman living in the 1st century AD.
He compiled a work of 37 chapters covering
natural history, architecture, medicine,
geography
Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and ...
, geology, and all aspects of the world around him.
This work became very popular in
Antiquity, was one of the first classical manuscripts to be printed in 1470, and has remained popular ever since as a source of information on the
Roman
Roman or Romans most often refers to:
* Rome, the capital city of Italy
*Ancient Rome, Roman civilization from 8th century BC to 5th century AD
*Roman people, the people of ancient Rome
*''Epistle to the Romans'', shortened to ''Romans'', a lette ...
world, and especially
Roman art
The art of Ancient Rome, and the territories of its Republic and later Empire, includes architecture, painting, sculpture and mosaic work. Luxury objects in metal-work, gem engraving, ivory carvings, and glass are sometimes considered to be mi ...
,
Roman technology and
Roman engineering.

The Spanish scholar
Isidore of Seville
Isidore of Seville ( la, Isidorus Hispalensis; c. 560 – 4 April 636) was a Spanish scholar, theologian, and archbishop of Seville. He is widely regarded, in the words of 19th-century historian Montalembert, as "the last scholar of ...
was the first Christian writer to try to compile a ''
summa
Summa and its diminutive summula (plural ''summae'' and ''summulae'', respectively) was a medieval didactics literary genre written in Latin, born during the 12th century, and popularized in 13th century Europe. In its simplest sense, they might ...
'' of universal knowledge, the ''
Etymologiae
''Etymologiae'' (Latin for "The Etymologies"), also known as the ''Origines'' ("Origins") and usually abbreviated ''Orig.'', is an etymological encyclopedia compiled by Isidore of Seville (c. 560–636) towards the end of his life. Isidore was ...
'' (c. 600–625), also known by classicists as the ''Origines'' (abbreviated ''Orig''.). This encyclopedia—the first such Christian
epitome
An epitome (; gr, ἐπιτομή, from ἐπιτέμνειν ''epitemnein'' meaning "to cut short") is a summary or miniature form, or an instance that represents a larger reality, also used as a synonym for embodiment. Epitomacy represents " ...
—formed a huge compilation of 448 chapters in 20 volumes
[MacFarlane 1980:4; MacFarlane translates ''Etymologiae'' viii.] based on hundreds of classical sources, including ''Natural Historia''. Of Etymologiae in its time it was said ''quaecunque fere sciri debentur'', "practically everything that it is necessary to know".
Among the areas covered were:
grammar,
rhetoric,
mathematics,
geometry
Geometry (; ) is, with arithmetic, one of the oldest branches of mathematics. It is concerned with properties of space such as the distance, shape, size, and relative position of figures. A mathematician who works in the field of geometry is ca ...
,
music
Music is generally defined as the art of arranging sound to create some combination of form, harmony, melody, rhythm or otherwise expressive content. Exact definitions of music vary considerably around the world, though it is an aspect ...
,
astronomy
Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies ...
,
medicine
Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practic ...
,
law, the
Catholic Church and
heretical sects,
pagan
Paganism (from classical Latin ''pāgānus'' "rural", "rustic", later "civilian") is a term first used in the fourth century by early Christians for people in the Roman Empire who practiced polytheism, or ethnic religions other than Judaism. I ...
philosopher
A philosopher is a person who practices or investigates philosophy. The term ''philosopher'' comes from the grc, φιλόσοφος, , translit=philosophos, meaning 'lover of wisdom'. The coining of the term has been attributed to the Greek th ...
s,
languages,
cities
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
,
animals and
birds, the
physical world
The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang theory is the prevailing cosmological description of the development of the universe. A ...
,
geography
Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and ...
,
public buildings,
road
A road is a linear way for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians. Unlike streets, the main function of roads is transportation.
There are many types of ...
s,
metals
A metal (from Greek μέταλλον ''métallon'', "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typical ...
,
rocks,
agriculture
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people t ...
,
ships,
clothes
Clothing (also known as clothes, apparel, and attire) are items worn on the human body, body. Typically, clothing is made of fabrics or textiles, but over time it has included garments made from animal skin and other thin sheets of materials ...
,
food
Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingest ...
, and
tools.
Another Christian encyclopedia was the ''Institutiones divinarum et saecularium litterarum'' of
Cassiodorus
Magnus Aurelius Cassiodorus Senator (c. 485 – c. 585), commonly known as Cassiodorus (), was a Roman statesman, renowned scholar of antiquity, and writer serving in the administration of Theodoric the Great, king of the Ostrogoths. ''Senator'' ...
(543-560) dedicated to the Christian Divinity and to the seven liberal arts.
The encyclopedia of
Suda, a massive 10th-century Byzantine encyclopedia, had 30,000 entries, many drawing from ancient sources that have since been lost, and often derived from medieval
Christian
Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words ''Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χρι ...
compilers. The text was arranged alphabetically with some slight deviations from common vowel order and place in the Greek alphabet.

From India, the
Siribhoovalaya
The ''Siribhoovalaya'' ( kn, ಸಿರಿಭೂವಲಯ) is a work of multi-lingual literature written by Kumudendu Muni, a Jain monk. The work is unique in that it employs not letters, but is composed entirely in Kannada numerals. The ''Saa ...
(Kannada: ಸಿರಿಭೂವಲಯ), dated between 800 A.D. to 15th century, is a work of
kannada literature written by
Kumudendu Muni
Kumudendu Muni ( kn, ಕುಮುದೇಂದು ಮುನಿ) was a ''Digambara monk'' who authored Siribhoovalaya, a unique multi-lingual literary work. Scholars are divided about when he lived and not much is known about him. It is believe ...
, a Jain monk. It is unique because rather than employing alphabets, it is composed entirely in
Kannada numerals
The Kannada script (IAST: ''Kannaḍa lipi''; obsolete: Kanarese or Canarese script in English) is an abugida of the Brahmic family, used to write Kannada, one of the Dravidian languages of South India especially in the state of Karnataka. Ka ...
. Many philosophies which existed in the Jain classics are eloquently and skillfully interpreted in the work.
The enormous encyclopedic work in China of the ''
Four Great Books of Song'', compiled by the 11th century during the early
Song dynasty
The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest ...
(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
Chinese characters () are logograms developed for the writing of Chinese. In addition, they have been adapted to write other East Asian languages, and remain a key component of the Japanese writing system where they are known as ''kanji' ...
in 1,000 written volumes.
There were many great encyclopedists throughout Chinese history, including the scientist and statesman
Shen Kuo (1031–1095) with his ''
Dream Pool Essays
''The Dream Pool Essays'' (or ''Dream Torrent Essays'') was an extensive book written by the Chinese polymath and statesman Shen Kuo (1031–1095), published in 1088 during the Song dynasty (960–1279) of China. Shen compiled this encyclopedi ...
'' 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
Noel Joseph Terence Montgomery Needham (; 9 December 1900 – 24 March 1995) was a British biochemist, historian of science and sinologist known for his scientific research and writing on the history of Chinese science and technology, in ...
.
[Needham, Volume 5, Part 7, 102.]
Printed encyclopedias
Before the advent of the printing press, encyclopedic 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.
During the
Renaissance
The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
, the creation of
printing
Printing is a process for mass reproducing text and images using a master form or template. The earliest non-paper products involving printing include cylinder seals and objects such as the Cyrus Cylinder and the Cylinders of Nabonidus. The e ...
allowed a wider diffusion of encyclopedias and every scholar could have his or her own copy. The ''
De expetendis et fugiendis rebus'' by
Giorgio Valla was posthumously printed in 1501 by
Aldo Manuzio
Aldus Pius Manutius (; it, Aldo Pio Manuzio; 6 February 1515) was an Italian printer and humanist who founded the Aldine Press. Manutius devoted the later part of his life to publishing and disseminating rare texts. His interest in and preserv ...
in
Venice
Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 ...
. This work followed the traditional scheme of liberal arts. However, Valla added the translation of ancient Greek works on mathematics (firstly by
Archimedes
Archimedes of Syracuse (;; ) was a Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. Although few details of his life are known, he is regarded as one of the leading scientists ...
), newly discovered and translated. The ''Margarita Philosophica'' by
Gregor Reisch, printed in 1503, was a complete encyclopedia explaining the
seven liberal arts
Liberal arts education (from Latin "free" and "art or principled practice") is the traditional academic course in Western higher education. ''Liberal arts'' takes the term ''art'' in the sense of a learned skill rather than specifically th ...
.
Financial, commercial, legal, and intellectual factors changed the size of encyclopedias. Middle classes had more time to read and encyclopedias helped them to learn more. Publishers wanted to increase their output so some countries like Germany started selling books missing alphabetical sections, to publish faster. Also, publishers could not afford all the resources by themselves, so multiple publishers would come together with their resources to create better encyclopedias. Later, rivalry grew, causing copyright to occur due to weak underdeveloped laws.
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
Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a " natural philosopher"), widely recognised as one of the gr ...
contributed his only published work on chemistry to the second volume of 1710.
Encyclopédie
Encyclopædia Britannica
The ''
Encyclopædia Britannica
The ( Latin for "British Encyclopædia") is a general knowledge English-language encyclopaedia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various ti ...
'', 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 ''Encyclopædia Britannica'' appeared in various editions throughout the nineteenth 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 Universal Encyclopaedia'' and ''
Everyman's Encyclopaedia'' were common.
Brockhaus
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.
E.s in the US
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''. As many as 90% were sold
door to door.
Jack Lynch says in his book ''You Could Look It Up'' that encyclopedia salespeople were so common that they became the butt of jokes. He describes their sales pitch saying, "They were selling not books but a lifestyle, a future, a promise of social mobility." A 1961 ''World Book'' ad said, "You are holding your family's future in your hands right now," while showing a feminine hand holding an order form.
Digital encyclopedias
By the late 20th century, encyclopedias were being published on
CD-ROM
A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data. Computers can read—but not write or erase—CD-ROMs. Some CDs, called enhanced CDs, hold both compute ...
s for use with personal computers.
Microsoft
Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washingt ...
's ''
Encarta'', launched in 1993, was a landmark example as it had no printed equivalent. Articles were supplemented with video and audio files as well as numerous high-quality images. After sixteen years, Microsoft discontinued the Encarta line of products in 2009.
Digital encyclopedias enable "Encyclopedia Services" (e.g.
Wikimedia Enterprise) to facilitate programatic access to the content.
Free encyclopedias
The concept of a free encyclopedia began with the
Interpedia
Interpedia was the first-proposed online encyclopedia which would allow anyone to contribute by writing articles and submitting them to the central catalogue of all Interpedia pages.
History
Interpedia was initiated by Rick Gates, who posted a ...
proposal on
Usenet in 1993, which outlined an Internet-based
online encyclopedia
An online encyclopedia, also called an Internet encyclopedia, or a digital encyclopedia, is an encyclopedia accessible through the internet. Examples include Wikipedia and ''Encyclopædia Britannica''.
Digitization of old content
In January 199 ...
to which anyone could submit content and that would be freely accessible. Early projects in this vein included
Everything2
Everything2 (styled Everything2 or E2 for short) is a collaborative Web-based community consisting of a database of interlinked user-submitted written material. E2 is moderated for quality, but has no formal policy on subject matter. Writing on ...
and
Open Site
Open-Site, the Open Encyclopedia Project was a free internet encyclopedia operated by Michael J. Flickinger in an effort to build a free categorized community-built encyclopedia, inspired by DMOZ. The Open Site software was open-source software ...
. In 1999,
Richard Stallman
Richard Matthew Stallman (; born March 16, 1953), also known by his initials, rms, is an American free software movement activist and programmer. He campaigns for software to be distributed in such a manner that its users have the freedom to ...
proposed the
GNUPedia
GNE (originally GNUPedia) was a project to create a free content online encyclopedia, licensed under the GNU Free Documentation License, under the auspices of the Free Software Foundation. The project was proposed by Richard Stallman in Decembe ...
, an online encyclopedia which, similar to the
GNU operating system
GNU () is an extensive collection of free software (383 packages as of January 2022), which can be used as an operating system or can be used in parts with other operating systems. The use of the completed GNU tools led to the family of operat ...
, 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
Nupedia was an English-language, online encyclopedia whose articles were written by volunteer contributors with appropriate subject matter expertise, reviewed by expert editors before publication, and licensed as free content. It was founded by ...
and later
Wikipedia that a stable free encyclopedia project was able to be established on the Internet.
The
English Wikipedia
The English Wikipedia is, along with the Simple English Wikipedia, one of two English-language editions of Wikipedia, an online encyclopedia. It was founded on January 15, 2001, as Wikipedia's first edition, and, as of
, has the most arti ...
, which was started in 2001, became the world's largest encyclopedia in 2004 at the 300,000 article stage. By late 2005, Wikipedia had produced over two million articles in more than 80 languages with content licensed under the
copyleft
Copyleft is the legal technique of granting certain freedoms over copies of copyrighted works with the requirement that the same rights be preserved in derivative works. In this sense, ''freedoms'' refers to the use of the work for any purpose, ...
GNU Free Documentation License
The GNU Free Documentation License (GNU FDL or simply GFDL) is a copyleft license for free documentation, designed by the Free Software Foundation (FSF) for the GNU Project. It is similar to the GNU General Public License, giving readers th ...
. As of August 2009, Wikipedia had over 3 million articles in English and well over 10 million combined in over 250 languages. Wikipedia currently has
articles in English.
Since 2003, other free encyclopedias like the Chinese-language
Baidu Baike
Baidu Baike (; , also known as Baidu Wiki) is a semi-regulated Chinese-language collaborative online encyclopedia owned by the Chinese technology company Baidu. The beta version was launched on April 20, 2006, and the official version was launc ...
and
Hudong
Baike.com (), formerly Hudong and Hoodong (), is a for-profit social network in Chinese, including the world's largest Chinese encyclopedia. It is one of the two largest wikis in China, along with Baidu Baike, claiming to have more than 18 milli ...
, as well as English language encyclopedias such as
Citizendium and
Knol
Knol was a Google project that aimed to include user-written articles on a range of topics. The lower-case term ''knol'', which Google defined as a "unit of knowledge", referred to an article in the project. Knol was often viewed as a rival to W ...
have appeared, the latter of which has been discontinued.
Online encyclopedias
In January 1995,
Project Gutenberg
Project Gutenberg (PG) is a volunteer effort to digitize and archive cultural works, as well as to "encourage the creation and distribution of eBooks."
It was founded in 1971 by American writer Michael S. Hart and is the oldest digital libr ...
started to publish the
ASCII
ASCII ( ), abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Because of ...
text of the ''
Encyclopædia Britannica
The ( Latin for "British Encyclopædia") is a general knowledge English-language encyclopaedia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various ti ...
'', 11th edition (1911), but disagreement about the method halted the work after the first volume.
For trademark reasons this has been published as the ''
Gutenberg Encyclopedia''.
Project Gutenberg later restarted work on digitising and proofreading this encyclopedia. Project Gutenberg has published volumes in alphabetic order the most recent publication is ''Volume 17 Slice 8: Matter–Mecklenburg'' published on 7 April 2013. The latest ''Britannica'' was digitized by its publishers, and sold first as a CD-ROM, and later as an online service.
In 2001, ASCII text of all 28 volumes was published on
''Encyclopædia Britannica'' Eleventh Edition by source; a copyright claim was added to the materials included. The website no longer exists, but the contents are available from the
Internet Archive
The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, ...
.
Other digitization projects have made progress in other titles. One example is ''
Easton's Bible Dictionary (1897)'' digitized by the
Christian Classics Ethereal Library.
A successful digitization of an encyclopedia was the
Bartleby Project's online adaptation of the ''
Columbia Encyclopedia
The ''Columbia Encyclopedia'' is a one-volume encyclopedia produced by Columbia University Press and, in the last edition, sold by the Gale Group. First published in 1935, and continuing its relationship with Columbia University, the encycloped ...
'', Sixth Edition, in early 2000 and is updated periodically.
Other websites provide online encyclopedias, some of which are also available on Wikisource, but which may be more complete than those on Wikisource, or maybe different editions (see
List of online encyclopedias
This is a list of well-known online encyclopedias—i.e., encyclopedias accessible or formerly accessible on the Internet.
The largest online encyclopedias are general reference works, though there are also many specialized ones. Some online ency ...
).
Another related branch of activity is the creation of new, free content on a volunteer basis. In 1991, the participants of the
Usenet newsgroup
started a project to produce a real version of ''
The Hitchhiker's Guide to the Galaxy'', a fictional encyclopedia used in the works of
Douglas Adams
Douglas Noel Adams (11 March 1952 – 11 May 2001) was an English author and screenwriter, best known for ''The Hitchhiker's Guide to the Galaxy''. Originally a 1978 BBC radio comedy, ''The Hitchhiker's Guide to the Galaxy'' developed into a " ...
. It became known as Project Galactic Guide. Although it originally aimed to contain only real, factual articles, the policy was changed to allow and encourage semi-real and unreal articles as well. Project Galactic Guide contains over 1700 articles, but no new articles have been added since 2000; this is probably partly due to the founding of
h2g2
The h2g2 website is a British-based collaborative online encyclopedia project. It describes itself as "an unconventional guide to life, the universe, and everything", in the spirit of the fictional publication '' The Hitchhiker's Guide to ...
, a more official project along similar lines.
The 1993
Interpedia
Interpedia was the first-proposed online encyclopedia which would allow anyone to contribute by writing articles and submitting them to the central catalogue of all Interpedia pages.
History
Interpedia was initiated by Rick Gates, who posted a ...
proposal was planned as an encyclopedia on the Internet to which everyone could contribute materials. The project never left the planning stage and was overtaken by a key branch of old printed encyclopedias.
Another early online encyclopedia was called the ''Global Encyclopedia''. In November 1995 a review of it was presented by James Rettig (Assistant Dean of University Libraries for Reference and Information Services)
College of William & Mary
The College of William & Mary (officially The College of William and Mary in Virginia, abbreviated as William & Mary, W&M) is a public research university in Williamsburg, Virginia. Founded in 1693 by letters patent issued by King William I ...
at the 15th Annual Charleston Conference on library acquisitions and related issues. He said of the ''Global Encyclopedia'':
He then gives several examples of article entries such as
Iowa City
Iowa City, offically the City of Iowa City is a city in Johnson County, Iowa, United States. It is the home of the University of Iowa and county seat of Johnson County, at the center of the Iowa City Metropolitan Statistical Area. At the ti ...
:
Wikipedia is a
free content, multilingual online encyclopedia written and maintained by a community of volunteer contributors through a model of
open collaboration
Open collaboration is any "system of innovation or production that relies on goal-oriented yet loosely coordinated participants who interact to create a product (or service) of economic value, which is made available to contributors and noncontribu ...
. It is the largest and most-read
reference work
A reference work is a work, such as a paper, book or periodical (or their electronic equivalents), to which one can refer for information. The information is intended to be found quickly when needed. Such works are usually ''referred'' to f ...
in history.
Wikipedia originally developed from another encyclopedia project called
Nupedia
Nupedia was an English-language, online encyclopedia whose articles were written by volunteer contributors with appropriate subject matter expertise, reviewed by expert editors before publication, and licensed as free content. It was founded by ...
.
CD-ROM encyclopedias
A CD-ROM encyclopedia is an encyclopedia delivered as
reference software on a
CD-ROM
A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data. Computers can read—but not write or erase—CD-ROMs. Some CDs, called enhanced CDs, hold both compute ...
disc for use on a
personal computer. This was the usual way computer users accessed encyclopedic knowledge from the 1980s and 1990s. Later
DVD discs replaced CD-ROMs and from mid-2000s
internet encyclopedias became dominant and replaced disc-based software encyclopedias. Some examples of CD-ROM encyclopedia are ''
Encarta'',
Grolier
Grolier was one of the largest American publishers of general encyclopedias, including '' The Book of Knowledge'' (1910), ''The New Book of Knowledge'' (1966), ''The New Book of Popular Science'' (1972), ''Encyclopedia Americana'' (1945), ''Acad ...
Multimedia Encyclopedia, and ''Britannica''.
CD-ROM encyclopedias were usually a
macOS or
Microsoft Windows
Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for se ...
(3.0, 3.1 or 95/98) application on a CD-ROM disc. The user would execute the encyclopedia's software program to see a menu that allowed them to start browsing the encyclopedia's articles, and most encyclopedias also supported a way to search the contents of the encyclopedia. The article text was usually
hyperlinked and also included
photographs
A photograph (also known as a photo, image, or picture) is an image created by light falling on a photosensitive surface, usually photographic film or an electronic image sensor, such as a CCD or a CMOS chip. Most photographs are now created ...
,
audio clips (for example in articles about historical speeches or musical instruments), and
video clips. In the CD-ROM age the video clips had usually a low resolution, often 160x120 or 320x240 pixels. Such encyclopedias which made use of photos, audio and video were also called
multimedia encyclopedias. However, because of the
online encyclopedia
An online encyclopedia, also called an Internet encyclopedia, or a digital encyclopedia, is an encyclopedia accessible through the internet. Examples include Wikipedia and ''Encyclopædia Britannica''.
Digitization of old content
In January 199 ...
, CD-ROM encyclopedias have been declared obsolete.
See also
*
Bibliography of encyclopedias
*
Biographical dictionary
A biographical dictionary is a type of encyclopedic dictionary limited to biographical information. Many attempt to cover the major personalities of a country (with limitations, such as living persons only, in ''Who's Who'', or deceased people only ...
*
Encyclopedic knowledge
*
Encyclopedism
Encyclopedism is an outlook that aims to include a wide range of knowledge in a single work. The term covers both encyclopedias themselves and related genres in which comprehensiveness is a notable feature. The word encyclopedia is a Latinization ...
*
Fictitious entry
*
History of science and technology
*
Lexicography
Lexicography is the study of lexicons, and is divided into two separate academic disciplines. It is the art of compiling dictionaries.
* Practical lexicography is the art or craft of compiling, writing and editing dictionaries.
* Theoreti ...
*
Library science
Library science (often termed library studies, bibliothecography, and library economy) is an interdisciplinary or multidisciplinary field that applies the practices, perspectives, and tools of management, information technology, education, ...
*
Lists of encyclopedias
For lists of encyclopedias, see:
* List of encyclopedias by branch of knowledge
* List of encyclopedias by date
* List of encyclopedias by language
* List of online encyclopedias
See also
* Bibliography of encyclopedias
* List of almanacs
* ...
*
Thesaurus
*
Speculum literature
The medieval genre of speculum literature, popular from the twelfth through the sixteenth centuries, was inspired by the urge to encompass encyclopedic knowledge within a single work. However, some of these works have a restricted scope and funct ...
Notes
References
*
*
*
* C. Codoner, S. Louis, M. Paulmier-Foucart, D. Hüe, M. Salvat, A. Llinares, ''L'Encyclopédisme. Actes du Colloque de Caen'', A. Becq (dir.), Paris, 1991.
*
*
*
*
*
*
*
*
*
*
*
*
*
External links
Encyclopaedia and Hypertext
– Biographical errors in encyclopedias and almanacs
Encyclopedia– Diderot's article on the Encyclopedia from the original
Encyclopédie
''Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers'' (English: ''Encyclopedia, or a Systematic Dictionary of the Sciences, Arts, and Crafts''), better known as ''Encyclopédie'', was a general encyclopedia publi ...
.
De expetendis et fugiendis rebus– First Renaissance encyclopedia
*
ttps://web.archive.org/web/20131109213126/http://reviews.cnet.com/1990-3118_7-6378998-1.html Digital encyclopedias put the world at your fingertipsCNET
''CNET'' (short for "Computer Network") is an American media website that publishes reviews, news, articles, blogs, podcasts, and videos on technology and consumer electronics globally. ''CNET'' originally produced content for radio and televi ...
article
Encyclopedias onlineUniversity of Wisconsin Stout listing by category
Chambers' ''Cyclopaedia'' 1728, with the 1753 supplement
''Encyclopædia Americana'' 1851,
Francis Lieber
Francis Lieber (March 18, 1798 or 1800 – October 2, 1872), known as Franz Lieber in Germany, was a German-American jurist, gymnast and political philosopher. He edited an '' Encyclopaedia Americana''. He was the author of the Lieber Code duri ...
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.
*
{{Authority control
Works about history