Knowledge (XXG)

:Overcategorization - Knowledge (XXG)

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It is not necessary to completely empty every parent category into sub-categories. So do not categorize articles into "miscellaneous", "other", "not otherwise specified" or "remainder", categories. Such articles will have little in common. If there are some articles that don't fit appropriately into
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However, avoid sub-categorizing subjects by location if that location does not have any relevant bearing on the subjects' other characteristics. For example, quarterbacks' careers are not defined merely by the specific state that they once lived in (unless they played for a team within that state).
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Categorization by non-defining characteristics should be avoided. It is sometimes difficult to know whether or not a particular characteristic is "defining" for any given topic, and there is no one definition that can apply to all situations. However, the following suggestions or rules-of-thumb may
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if this relates to a specific place or event. If it is relevant to identify the place of burial (either from the perspective of the person or the burial place), then someone buried in a less notable cemetery, or in a place with just a few notable burials, should be recorded in a list within the
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is the test that is used to determine whether a category should be created for a particular attribute of a topic. In general, it is much easier to verifiably demonstrate that a particular characteristic is notable than to prove that it is a defining characteristic of the topic. In cases where a
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Avoid categorizing locations by the events or event types that have been held there, such as arenas that have hosted specific sports events or concerts, convention centers that have hosted specific conventions or meetings, or cities featured in specific television shows that film at multiple
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Avoid categorizing characters or specific works by the performers who have portrayed them or appeared in them. A typical film or television series has many actors in various roles, so categorizing by actor results in needless clutter. Similarly, some roles, particularly animated ones like
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It is recommended to name or rename categories to have as little vagueness as possible, discouraging non-defining articles from being added. If you have just invented a subcategory on the spot that lacks a main article, it may not be a defining attribute. Examples include:
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For biographical articles, it is usual to categorize by such aspects as their career, origins, and major accomplishments. In contrast, someone's tastes in food, their favorite holiday destination, or the number of tattoos they have would be considered
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Avoid categorizing performers by an appearance at an event or other performance venue. This also includes categorization by performance—even for permanent or recurring roles—in any specific radio, television, film, or theatrical production (such as
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is the test that is used to determine whether a topic should have its own article. This test, combined with the test of verifiability, is used to determine whether particular information should be included in an article about a topic.
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and vague determination. Determining what degree or nature of "association" with a particular subject is necessary to qualify for inclusion in such a category can also be subjective and vague, and any threshold set may fail
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to be an option, and when similar intersections can be made for related categories. A common way to address such narrow categorization is to selectively "Up-Merge" the contents of the category to its parent categories.
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Avoid categorizing people by their personal opinions, even if a reliable source can be found for the opinions. This includes supporters or critics of an issue, personal preferences (such as liking or disliking
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Categories which intersect two (or more) topics or characteristics can result in very narrow categories with few members. Such categories should only be created when both parent categories are large enough for
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by performers' performances. For example, just as we shouldn't categorize a performer by action or appearance, we shouldn't categorize a production by a performer's action or appearance in that production.
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Also avoid categorizing people by information associated with a person's death, such as the age at which the person died, the place of the person's death, or by whether the person still had
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may seem significant from the perspective of local studies, is rarely defining from the perspective of the individual. The place of death is not normally categorized – consider using a
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article about the burial place. However, if the burial place is notable in its own right and has too many other notable people to list, then such burials may be categorized.
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Similarly, while an article in categories A, B, and C could potentially be placed in categories "A and B", "B and C", and "A and C" – creating a "triple intersection" of
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While people may be categorized by the year of their birth and year of death, do not categorize people by day or month of birth or death. (See also list of CFD examples
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recipients. And a recipient of an award should be added to a category of award recipients only if receiving the award is a defining characteristic of the recipient.
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does not usually change from year to year), it is generally better to (up)merge to the (non-year) parent category of the topic, and then diffuse as appropriate.
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Note also that performers should not be categorized into a general category which groups topics about a particular performance venue or production (e.g.
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To address these concerns, this page lists types of categories that should generally be avoided. Based on existing guidelines and previous precedent at
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A candidate not yet nominated for public office, the possible next CEO of a certain corporation, a potential member of a sports team, an actor on the
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with 3,800 students is not meaningfully different from one with 4,100 students. A better way of representing this kind of information is to make it a
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Portraying a "type" of character (such as dead, female, gay, homeless, queen, old, president, religious, Scottish, wealthy, etc.) This also includes
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a defining characteristic is one that reliable, secondary sources commonly and consistently define, in prose, the subject as having. For example: "
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Do not create categories for every single verifiable fact in articles. This only makes the category system more crowded and less easy to navigate.
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However, it may be appropriate to have categories whose title clearly conveys a specific and defined relationship to a specific subject, such as
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Categorization is a Knowledge (XXG) feature used to group pages for ease of navigation, and correlating similar information. However, not every
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However, categories that indicate how a specific facility is regularly used in a specific and notable way for some or all of the year (such as
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can be a way to divide subjects into regions that are directly related to the subjects' characteristics. Location may also be used as a way to
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is determined by separate criteria. So regardless of whether a category is created, a list of the recipients may be created (presuming that
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when it is a non-defining characteristic of the subject, or by characteristics of the name rather than the subject itself.
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that places should not be categorized as established in the year of the earliest surviving historical record of the place.
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Similarly, avoid categorizing artists based on producers, film directors or other artists they have worked with (such as "
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characteristics of an article's topic are central to categorizing the article. A defining characteristic is one that
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is distinguished by his performances as an actor, not by the fact that he has appeared in Steven Spielberg's films.
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particular attribute about a topic is verifiable and notable but not defining, or where doubt exists, creation of a
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may sometimes be appropriate for such groupings, especially after the passage of the events to which they relate.
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if the characteristic falls within any of the forms of overcategorization mentioned on this page, it is probably
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Avoid categorizing topics by characteristics that are unrelated or wholly peripheral to the topic's notability.
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Avoid categorizing performers by their performances. Examples of "performers" include (but are not limited to)
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only when necessary. This applies to any time period, like months to years; or years or decades, to centuries.
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refer to in describing the topic, such as the nationality of a person or the geographic location of a place.
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an English soldier born in 1590 and notable for military service in the 1620s should not be categorized in
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process may be used to determine whether a particular characteristic is defining or not. For example,
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to play a role, or an award nominee (just to name a few examples) should not be grouped by category.
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If a category is mostly duplicative or overlapping with another category (such as the coverage of "
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a writer who lived from 1850 to 1910 and wrote their only work in 1908 should be categorized under
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In addition, people are categorized by time period only if their activity in that time period is a
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Likewise, avoid categorizing events by their hosting locations. Many notable locations (e.g.
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Avoid categories which categorize performers by their portrayal of a role. This includes:
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and may be somewhat arbitrary. Some particularly well-known and unique lists such as the
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inclusion criterion should not be used in naming/defining a category. Examples include
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actors"). Performers are defined by their body of work, not by the people they have
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Knowledge (XXG):What Knowledge (XXG) is not § Non-encyclopedic cross-categorizations
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Hospitals and medical institutions associated with the 2019–20 coronavirus pandemic
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Avoid categorizing performers by some action they may have performed (such as a "
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School districts at the top 7% in Pennsylvania on Pennsylvania standardized tests
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One of the central goals of the categorization system is to categorize articles
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Please note, however, the distinction between holding an opinion and being an
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A category of award recipients should exist only if receiving the award is a
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any of the sub-categories, then leave the articles in the parent category.
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Category:People who have received honorary degrees from Harvard University
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When categorizing by time period, clearly state the inclusion criteria at
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charts may constitute exceptions, although creating categories for them
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For example, if an article is in category "A" and in category "B" – a
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For example, a category for unrelated people who happen to be named "
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This category is for politicians who were active in the 19th century
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There is no particular reason for choosing "7%", "$ 30,000", or the
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which seek to be an alternative way to address overcategorization.
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This category is for politicians who were born in the 19th century
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if the characteristic would not be appropriate to mention in the
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For the diffusion of categories (the equivalent of the Commons'
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Entertainers who performed for troops during the Vietnam War
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Knowledge (XXG):Categories, lists, and navigation templates
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Knowledge (XXG):Categorizing articles about people#Defining
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For other guidelines which concern overcategorization, see
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Overcategorization/Intersection of location and occupation
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Performers who have portrayed <a type of character: -->
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Often, users can become confused between the standards of
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in declarative statements, rather than table or list form
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Actors who have played the President of the United States
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may risk violating the publisher's copyright or trademark
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does not necessarily need to be created for this article.
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The place of residence of parents and relatives is never
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may apply. Substantive edits to this page should reflect
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When considering grouping subjects that share a name, a
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to provide clarity and detail to each of the instances.
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Performers who have performed <a specific work: -->
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Potential 2008 Republican U.S. Presidential Candidates
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Performers who have portrayed <character name: -->
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Performers who have performed on <production: -->
1954:", etc.); some method of performance (such as while 2639: 2593: 2567: 2511: 2450: 2242:Performers who have performed at <location: --> 1926:Saxophonists who are capable of circular breathing 1182:American people of Hungarian descent by occupation 1104:a large category into subcategories, for example, 2631:WikiProject Plants/Description in year categories 2585:Categories for discussion/All current discussions 2344:which have been portrayed by a specific performer 2340:which have been portrayed by a specific performer 2321:Fictional characters portrayed by Christopher Lee 2317:Fictional characters portrayed by Peter Dinklage 2336:who have been portrayed by a specific performer 1828:Category:National Basketball Association venues 810:Locations with per capita incomes over $ 30,000 687:Adjectives which imply a subjective, vague, or 386: 63:This page documents an English Knowledge (XXG) 2611:Categorising fictional characters by attribute 1836:#Performers by production or performance venue 2430: 2209:Performers by production or performance venue 1662:characteristic for the large majority of its 1496:By opinion or preference of an issue or topic 835:by size". Note that Knowledge (XXG) allows a 823:as cutoff points in these cases. Likewise, a 437:, ...". If such examples are common, each of 309: 8: 19:"WP:OC" redirects here. For other uses, see 2468:Categories, lists, and navigation templates 1240:People of the Moravian Church miscellaneous 946:categories with very few members (see also 71:Editors should generally follow it, though 2437: 2423: 2415: 2064:), and also non-human characters (such as 1445:People associated with the hippie movement 1391:might be a possible alternative solution. 316: 302: 177: 2652:DexDor/Categorization of award recipients 2353:and historical/mythological figures like 2011:Actors who played HIV-positive characters 362:Knowledge (XXG):Categorization § Defining 173:Knowledge (XXG):Categories for discussion 1987:Actors that portrayed heroes or villains 143:For broader coverage of this topic, see 2685:Category:Knowledge (XXG) categorization 2365: 1488:Category:Obama administration personnel 1382:Category:Jackson family (show business) 1321:It might also be appropriate to create 279: 256: 234: 187: 180: 2616:Do not write articles using categories 2601:Categories are different from articles 2313:Characters Portrayed by Leslie Nielsen 2178:), even if the "voice" in question is 1683:the list meets the notability criteria 1600:Knowledge (XXG) is not a crystal ball. 160:intersection of two or more such facts 2405:Knowledge (XXG):Category intersection 2007:Actors who have played gay characters 2003:Actors who have played serial killers 1810:Democratic National Convention venues 1804:Republican National Convention venues 168:is also known as "category clutter". 7: 2290: 2116:Performing a specific work (such as 1647:Category:Honorary citizens of Berlin 1331:Unrelated subjects with shared names 501:is often the preferred alternative. 2309:Characters portrayed by Johnny Depp 2140:Why did the chicken cross the road? 2091:. (This does not currently include 1733:Rolling Stone's 500 Greatest Albums 1435:People associated with Pope Pius XI 1019:Category:People of the Tudor period 898:Films set in the 10th millennium BC 845:Intersection by year or time period 715:), any reference to relative size ( 445:may be deemed to be "defining" for 2716:Knowledge (XXG) editing guidelines 2503:Overcategorization/User categories 2478:Categorizing articles about people 2220:Saturday Night Live musical guests 2201:with professionally. For example, 1914:Actresses who have appeared veiled 1907:Performers by action or appearance 1547:the person by other people (e.g. " 1453:Places associated with The Beatles 1449:Films associated with Generation X 1429:People associated with John McCain 1369:Avoid categorizing by a subject's 1106:Category:American writers by state 79:. When in doubt, discuss first on 14: 2672:Kbdank71/Wikiproject notification 2554:Template index/Category namespace 2549:Category classification templates 2283:Category:Star Trek script writers 2054:characters based upon real people 2019:Actors who have played Doctor Who 1995:Actresses who portrayed Lois Lane 1976:Performers by role or composition 1568:Potential candidates and nominees 1264:Mostly overlapping or duplicative 931:) is not generally considered an 882:20th-century American politicians 382:by their defining characteristics 16:Knowledge (XXG) editing guideline 2580:Categories for discussion/Speedy 2298:Role or composition by performer 2228:Celebrity Poker Showdown players 2056:from history or legend (such as 1830:) may sometimes be appropriate. 1641:Category:MTV Movie Award winners 127: 55: 2657:Alan Liefting/On categorisation 2198: 1754: 1543:), and opinions or allegations 1471: 2721:Knowledge (XXG) categorization 2445:Knowledge (XXG) categorization 1922:Musicians who play left-handed 1476: 1441:People associated with Madonna 1360:Churches named for St. Dunstan 1297:German expatriates in Tanzania 1246:Brass bands of other countries 1208:, should generally be avoided. 1087:Male models from Dallas, Texas 1075:Roman Catholic bishops of Ohio 932: 890:1971 National League All-Stars 874:Knowledge (XXG):People by year 623:unreleased or unpublished work 145:Knowledge (XXG):Categorization 1: 2667:gracefool/What is a category? 2647:DexDor/Terminology categories 2305:Fictional characters by actor 1898:This includes categorizing a 1659: 1462:The problem with saying that 1113: 1013:Category:19th-century writers 1005:Category:20th-century writers 993: 935:division for categorization. 631:Subjective inclusion criteria 625:at the time of their death. 2488:Categorization/Sorting names 2339:<Types of characters: --> 2216:Artists who played Coachella 2122:, "Waltz of the swans" from 978: 910:(or group of years, such as 781:Arbitrary inclusion criteria 331:Non-defining characteristics 1081:Quarterbacks from Louisiana 947: 2737: 1848: 1776: 1704: 1619: 1596:(deleted in November 2006) 1571: 1527:Iraq liberation opposition 1499: 1400: 1334: 1267: 1218: 1174:Roads in Ukraine by Oblast 1141: 1053: 973:Similarly, If two or more 938:However, avoid creating a 871: 848: 784: 634: 560: 454:lead section of an article 359: 334: 142: 87: 81:this guideline's talk page 36: 25: 18: 2680: 2575:Categories for discussion 2329:Films starring Jim Carrey 1845:Performers by performance 1301:Crime history nominations 1125:place of a person's birth 837:table to be made sortable 545:categories for discussion 227:Perennial deletion review 2271:The Phantom of the Opera 1983:American dramatic actors 1397:By being associated with 1215:Miscellaneous categories 1050:Intersection by location 977:categories have a large 516:Medically-skilled people 374:Knowledge (XXG):Defining 135:This page in a nutshell: 2606:Categories versus lists 1170:Sportsmen from Brisbane 1034:the top of the category 814:Category:100th episodes 693:subjective descriptions 557:Trivial characteristics 543:In disputed cases, the 2695:WikiProject Categories 2524:Basic help for editors 2519:Basic help for readers 2493:Categorizing redirects 2407:– one of several open 2253:The Jack Benny Program 2040:Portraying a specific 1956:standing on their head 1470:, is that it can be a 1178:Triathletes from Leeds 894:1852 religious leaders 739:), or personal trait ( 731:), relative distance ( 689:inherently non-neutral 407: 21:WP:OC (disambiguation) 1821:Madison Square Garden 1484:Category:Obama family 1466:is "associated" with 1293:Climate change denial 670:Outstanding Canadians 217:Common outcomes (TfD) 212:Common outcomes (RfD) 207:Common outcomes (AfD) 2662:Coder Dan/Categories 2544:Categorizing portals 2539:Container categories 2400:Help:Sortable tables 2154:characters, both in 1991:Jim Steinman artists 1206:category A, B, and C 1092:Categorizing by the 987:religious leadership 664:Mysterious musicians 533:Fiction about robots 281:Proposals and policy 267:Guide to arbitration 258:Arbitration (Arbcom) 239:Bureaucratship (RfB) 2594:Projectspace essays 2335:<Characters: --> 2146:This also includes 1873:pornographic actors 1798:WrestleMania venues 1673:, the existence of 1389:disambiguation page 1252:Uncategorised songs 1138:Narrow intersection 1094:geographic boundary 1040:is not the same as 290:Perennial proposals 237:Adminship (RfA) and 2473:Overcategorization 2279:Category:Star Trek 2224:Ozzfest performers 2182:or other specific 2142:" (a joke), etc.). 2130:To be or not to be 1560:Category:Activists 886:November 11 births 549:there is consensus 527:Fast-moving drones 249:Arguments to avoid 222:Overcategorisation 202:Arguments to avoid 165:overcategorization 2703: 2702: 2690:Category:Contents 1918:Anal porn actress 1749:, and other such 1418:WP:ASSOCIATEDWITH 1364:Fictional Misters 1356:Ice-named rappers 538:Robots in fiction 326: 325: 141: 140: 122: 121: 65:editing guideline 2728: 2640:Userspace essays 2439: 2432: 2425: 2416: 2409:feature requests 2384: 2379: 2373: 2370: 2351:Woody Woodpecker 2291:#Venues by event 2236:Actors by series 2195:Steven Spielberg 2111:stock characters 1869:actors/actresses 1861: 1789: 1724: 1717: 1694: 1688: 1632: 1616:Award recipients 1584: 1512: 1420: 1413: 1347: 1280: 1231: 1199:category A and B 1161: 1154: 1066: 996:characteristic. 861: 797: 676:Wars France lost 647: 645:WP:SUBJECTIVECAT 593:Red haired kings 589:Celebrity Gamers 580: 573: 396:reliable sources 354: 347: 318: 311: 304: 181:Common decisions 178: 131: 130: 124: 114: 107: 100: 59: 58: 52: 2736: 2735: 2731: 2730: 2729: 2727: 2726: 2725: 2706: 2705: 2704: 2699: 2676: 2635: 2589: 2563: 2534:FAQ for editors 2529:FAQ for readers 2507: 2498:User categories 2446: 2443: 2392: 2387: 2380: 2376: 2371: 2367: 2363: 2332: 2300: 2295: 2239: 2211: 2193:musicians" or " 2079:, or doing an " 2070:Kermit the Frog 2023: 1978: 1929: 1909: 1865: 1864: 1857: 1853: 1847: 1840: 1813: 1793: 1792: 1785: 1781: 1775: 1773:Venues by event 1736: 1728: 1727: 1720: 1713: 1709: 1703: 1692: 1686: 1656: 1636: 1635: 1628: 1624: 1618: 1597: 1588: 1587: 1580: 1576: 1570: 1536: 1516: 1515: 1508: 1504: 1498: 1460: 1424: 1423: 1416: 1409: 1405: 1399: 1367: 1351: 1350: 1343: 1339: 1333: 1304: 1284: 1283: 1276: 1272: 1266: 1255: 1235: 1234: 1227: 1223: 1217: 1185: 1165: 1164: 1157: 1150: 1146: 1140: 1090: 1070: 1069: 1062: 1058: 1052: 1036:. For example, 1011:be included in 901: 876: 865: 864: 857: 853: 847: 839:by any column. 825:school district 817: 801: 800: 795:WP:ARBITRARYCAT 793: 789: 783: 685: 651: 650: 643: 639: 633: 608: 601:Famous redheads 584: 583: 576: 569: 565: 559: 364: 358: 357: 350: 343: 339: 333: 322: 241: 152: 128: 118: 117: 110: 103: 96: 92: 84: 56: 50: 35: 24: 17: 12: 11: 5: 2734: 2732: 2724: 2723: 2718: 2708: 2707: 2701: 2700: 2698: 2697: 2692: 2687: 2681: 2678: 2677: 2675: 2674: 2669: 2664: 2659: 2654: 2649: 2643: 2641: 2637: 2636: 2634: 2633: 2628: 2623: 2618: 2613: 2608: 2603: 2597: 2595: 2591: 2590: 2588: 2587: 2582: 2577: 2571: 2569: 2565: 2564: 2562: 2561: 2556: 2551: 2546: 2541: 2536: 2531: 2526: 2521: 2515: 2513: 2509: 2508: 2506: 2505: 2500: 2495: 2490: 2485: 2483:People by year 2480: 2475: 2470: 2465: 2463:Category names 2460: 2458:Categorization 2454: 2452: 2448: 2447: 2444: 2442: 2441: 2434: 2427: 2419: 2413: 2412: 2402: 2396:m:Help:Sorting 2391: 2388: 2386: 2385: 2374: 2364: 2362: 2359: 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Index

WP:OC (disambiguation)
COM:OVERCAT
WP:SUBCAT
WP:OCEGRS
WP:OCEPON
WP:USERCAT
editing guideline
exceptions
consensus
this guideline's talk page
Shortcuts
WP:OVERCAT
WP:OCAT
WP:OC
Knowledge (XXG):Categorization
Knowledge (XXG):What Knowledge (XXG) is not § Non-encyclopedic cross-categorizations
verifiable
intersection of two or more such facts
overcategorization
Knowledge (XXG):Categories for discussion
Deletion (XfD)
Arguments to avoid
Common outcomes (AfD)
Common outcomes (RfD)
Common outcomes (TfD)
Overcategorisation
Perennial deletion review
Adminship (RfA) and
Bureaucratship (RfB)

Arguments to avoid
Arbitration (Arbcom)

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