Encyclopedia
type of reference work
An encyclopedia is a reference work or compendium providing summaries of knowledge, either general or special, in a particular field or discipline. Encyclopedias are divided into articles or entries that are arranged alphabetically by article name or by thematic categories, or, in the case of online encyclopedias, they are hyperlinked and searchable. Encyclopedia entries are longer and more detailed than those in most dictionaries. Generally speaking, encyclopedia articles focus on factual 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, meaning, pronunciation, use, and grammatical forms.
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.
In the 21st century the appearance of digital and open-source versions such as Wikipedia (together with the wiki website format) has vastly expanded the accessibility, authorship, readership, and variety of encyclopedia entries.
Etymology
The word encyclopedia comes from the Koine Greek ἐγκύκλιος παιδεία, transliterated enkúklios paideía 'general education', from enkúklios (ἐγκύκλιος) 'circular, recurrent, required regularly, general' and paideía (παιδεία) 'education, rearing of a child'; together, the phrase literally translates as 'complete instruction, 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 Quintilian in 1470. The copyists took this phrase to be a single Greek word, enkuklopaideía, with the same meaning, and this spurious Greek word became the Neo-Latin word encyclopaedia, which was in turn borrowed into English.
Begin with the source’s own compact description: “Encyclopedia” is type of reference work. The dossier treats that line as a proposition to test through Encyclopedia, type and work, not as a finished interpretation.
Why this record matters
The phrase “type of reference work” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q5292. The Library of Congress control number is sh99001614. 1 of 2 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1470.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Encyclopedia”, its source revision and the description used here.
- Expand the search: follow Encyclopedia primary sources, Encyclopedia archive and Encyclopedia research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Encyclopedia”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Encyclopedia” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.