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edit  watch   Wikipedia's contents: Categories General reference Culture and the arts Geography and places    Health and fitness     History and events Mathematics and logic Natural and physical sciences    People and self    Philosophy and thinking Religion and belief systems Society and social sciences Technology and applied sciences Categories (along with other features like cross-references, lists, and infoboxes) help you to find information, even if you don't know what exists or what it's called. The following list of categories of Wikipedia's coverage parallels our other lists by topic. edit  watch   General reference   (see in all page types) Quick links The topmost category List of all categories About Wikipedia's categories Category help Random category Category index ! 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Main categories: Research and Library science Reference works • Almanacs • Atlases • Biographical dictionaries • Dictionaries (online) • Directories (online) • Encyclopedias (online) • Glossaries • Handbooks and manuals • Lists • Medical manuals • Reference book stubs • Reference works in the public domain • Style guides • Trivia books • Web sites Further research tools and topics • Academic disciplines • Archives • Books • Clients • Colleges • Curricula • Databases (online) • Distance education • Grammar • Government agencies • Indices • Information • Knowledge • Libraries (digital) • Library cataloging and classification • News agencies • Periodic table • Prefixes • Reading • Research • Search engines • Suffixes • Topics • Universities • Writing edit  watch   Culture and the arts   (see in all page types) Main categories: Culture and Arts Culture and Humanities  – Classics • Critical theory • Cultural anthropology • Folklore • Food culture • Gastronomy • Languages • Literature • Museology • Mythology • Philosophy • Popular culture • Science and culture • Traditions Arts and Entertainment – Arts and crafts • Celebrity • Censorship in the arts • Festivals • Humor • Literature • Museums • Parties • Poetry Performing arts – Dance • Film • Music • Opera • Storytelling • Theatre Visual arts – Architecture • Comics • Crafts • Design • Drawing • Film (Animation) • Painting • Photography • Sculpture Games and Toys – Board games • Card games • Dolls • Puppetry • Puzzles • Role-playing games • Video games Mass media – Broadcasting • Film • Internet • Magazines • Newspapers • Publications • Publishing • Radio • Television Sports and Recreation – Air sports • American football • Association football • Auto racing • Baseball • Basketball • Boating •Boxing • Canoeing • Cricket • Cycling • Exercise • Fishing •Golf • Gymnastics • Hobbies • Horse racing • Ice hockey • Lacrosse • Olympics • Rugby league • Rugby union • Sailing • Skiing • Swimming • Tennis • Track and field • Walking trails • Water sports • Whitewater sports edit  watch   Geography and places   (see in all page types) Main categories: Geography and Places Cities • Communities • Continents • Countries • Deserts • Earth • Lakes • Landforms • Maps • Mountains • Oceans • Protected areas • Regions • Rivers • Subterranea • Territories • Towns • Villages edit  watch   Health and fitness   (see in all page types) Main categories: Health, Self-care, and Healthcare occupations Self-care – Health promotion • Life extension • Prevention • Sexual health Nutrition – Dietary supplements • Dietetics • Nutrients  (Amino acids, Minerals, Nootropics, Phytochemicals, Vitamins) • Nutritional advice pyramids Exercise – Aerobics • Bodyweight exercise (Calisthenics) • Cycling • Exercise equipment • Exercise instructors • Dancing • Exercise physiology • Hiking • Pilates • Running • Sports • Swimming • T'ai Chi Ch'uan • Walking • Weight training • Weight training exercises • Yoga Hygiene – Cleaning • Oral hygiene Positive psychology – Mental health • Psychotherapy Public health  – Health by country • Healthcare • Health law • Health promotion • Health standards • Hospitals • Occupational safety and health • Pharmaceutical industry • Safety • Health science – Clinical research • Diseases • Epidemiology • Midwifery • Nursing • Nutrition • Optometry • Pharmacy • Public health  Medicine – Veterinary medicine Dentistry • Dental hygiene and Orthodontics • Pharmaceuticals policy • Human medicine – Alternative medicine • Cardiology • Endocrinology • Forensics • Gastroenterology • Human Genetics • Geriatrics • Gerontology • Gynecology • Hematology • Nephrology • Neurology • Obstetrics • Oncology • Ophthalmology • Orthopedic surgery • Pathology • Pediatrics • Psychiatry • Rheumatology • Sleep • Surgery • Urology edit  watch   History and events   (see in all page types) Main categories: History and Events By Period • By Topic • Science • Religion • Historiography • Timelines History by Location Regions – Africa • Asia • Europe • North America • Middle East • Oceania • South America Countries – Cities – Empires edit  watch   Mathematics and logic   (see in all page types) Main categories: Mathematics and Abstraction Algebra • Analysis • Arithmetic • Education • Equations • Geometry • Logic • Measurement • Numbers • Proofs • Theorems • Trigonometry Statistics • Analysis of variance • Bayesian statistics • Categorical data • Covariance and correlation • Data analysis • Decision theory • Design of experiments • Logic and statistics • Multivariate statistics • Non-parametric statistics • Parametric statistics • Regression analysis • Sampling • Statistical theory • Stochastic processes • Summary statistics • Survival analysis • Time series analysis • Uncertainty of numbers edit  watch   Natural and physical sciences   (see in all page types) Main categories: Science, Natural sciences, and Nature Biology • Ecology • Health sciences • Medicine • Neuroscience • (See also the Health and fitness section above) Earth sciences: • Atmospheric sciences • Geography • Geology • Geophysics • Oceanography  Nature: • Animals • Environment • Humans • Life • Natural resources • Plants • Pollution  Physical sciences • Astronomy • Chemistry • Climate • Physics • Space Scientific method • Scientists edit  watch   People and self   (see in all page types) Main categories: People, Personal life, Self and Surnames People • Beginners and newcomers • Biographies • Children • Heads of state • Humans • Legal categories of people • Men • Old age • Political people • Rivalry • Social groups • Subcultures • Women Classified By: city • company • continent • educational institution • ethnicity  (descent • origin) • medical or psychological condition • nationality • occupation • political orientation • religion • revolution • status • year born • year deceased Lists of people • Personal timelines • Terms for females • Terms for males Activist • Actor • Astronaut • Billionaire • Chief executive • Colonial people • Composer • Cyborg • Defector • General • Humanitarian • Innovator • Inventor • Lesbian, gay, bisexual or transgendered • Monarch • Musician • Musical group • Philosopher • Photographer •Politician • President • Prince • Princess • Revolutionary • Scientist • Settler • Singer • Slaves • Victim • People associated with war • Writer Self • Altered ego • Consciousness studies • Gender • Personality • Sexuality • Sexual orientation Personal life • Clothing • Employment • Entertainment • Food and drink • Games • Health • Hobbies • Home • Income • Interpersonal relationship • Leisure • Love • Motivation • Personal development • Pet edit  watch   Philosophy and thinking   (see in all page types) Main categories: Philosophy and Thought Philosophy • Branches • Schools and traditions • Movements • Theories • Arguments • Philosophers • Literature • History • By era • By region • Aesthetics • Epistemology • Ethics • Logic • Metaphysics Thinking / thinking skills • Attention • Cognition • Cognitive biases • Creativity • Decision theory • Emotion • Error • Imagination • Intelligence • Intelligence researchers • Learning • Memory • Memory biases • Mnemonics • Nootropics (smart drugs) • Organizational thinking • Perception • Problem solving • Psychological adjustment • Psychometrics • Qualities of thought edit  watch   Religion and belief systems   (see in all page types) Main categories: Religion and Belief Allah • Bible • Buddhas • Deities • Demons • Exorcism • God • Jesus • Mythology • Occult • Prayer • Prophecy • Quran • Religious ethics • Religious law • Ritual • Spirituality • Theology  Belief systems • Religious faiths, traditions, and movements • Agnosticism • Animism • Atheism • Deism • Determinism • Esotericism • Gnosticism • Humanism • Monism • Monotheism • Mysticism • New Age • Paganism • Pantheism • Polytheism • Shamanism • Skepticism • Spiritualism • Theosophy • Transcendentalism • Unitarianism Major beliefs of the world  • Agnosticism • Atheism • Ayyavazhi • Bahá'í Faith • Buddhism • Cao Dai • Chinese folk religion • Christianity • Confucianism • Druidry • Falun Gong • Hinduism • Islam • Jainism • Judaism • Mormonism • Neopaganism • Rastafarianism • Satanism • Scientology • Sikhism • Spiritism • Shinto • Taoism • Tenrikyo • Unitarian Universalism • Wicca • Zoroastrianism Mythology • Mythology by culture • Abrahamic mythology • Buddhist mythology • Christian mythology • Hindu mythology • Islamic mythology • Jewish mythology  See also: Criticism of religion edit  watch   Society and social sciences   (see in all page types) Main categories: Science, Social sciences, and Society Scientific method • Scientists Social sciences • Anthropology • Archaeology • Cultural studies • Demographics • Economics • Heuristics • Information studies • International relations • Linguistics • Psychology • Media studies • Political science • Social scientists • Sociology • Sexology • Systems theory• Public Administration Society • Activism • Business • Communication • Crime • Education • Ethnic groups • Family • Finance • Government • Health • Home • Industries • Infrastructure • Labor • Law • Mass media • Military • Money • Organizations • Peace • Politics • Real Estate • Rights • War edit  watch   Technology and applied sciences   (see in all page types) Main categories: Technology and Applied sciences Agriculture & Agronomy • Architecture • Automation • Biotechnology • Blu-ray • Cartography • Chemical engineering • Communication (Media studies • Telecommunications) • Construction • Design • Digital divide • Earthquake engineering • Electronics • Energy • Ergonomics • Firefighting • Fire prevention • Forensics • Forestry • Industry • Information science • Information technology • Internet • Management • Manufacturing • Marketing • Medicine (Unsolved problems in neuroscience) • Metalworking • Microtechnology • Military science • Mining • Nanotechnology • Nuclear technology • Nutrition • Optics • Plumbing • Robotics • Sound technology • Technology forecasting • Tools Computing:  Artificial intelligence • Classes of computers • Companies • Computer architecture • Computer model • Computer science • Computer security • Computing and society • Data • Embedded systems • Free software • Human–computer interaction • Information systems • Internet • Mobile Web • Languages • Multimedia • Networks • Industrial Networks • Operating systems • Platforms • Product lifecycle management • Programming • Real-time computing • Software • Software engineering • Unsolved problems in computer science • More... Electronics:   Avionics • RF & MMIC Design • Circuits • Companies • Connectors • Consumer electronics • Digital electronics • Digital media • Electrical components • Electronic design • Electronics manufacturing • Embedded systems • Integrated circuits • Microwave technology • Molecular electronics • Water technology • Optoelectronics • Quantum electronics • RFID • Radio electronics • Semiconductors • Signal cables • Surveillance • Telecommunications • Terminology • More... Engineering:  Aerospace engineering • Bioengineering • Chemical engineering • Civil engineering • Electrical engineering • Environmental engineering • Materials science • Mechanical engineering • Nuclear technology • Software engineering • Structural engineering • Systems engineering Transport:   By country • Automobiles • Aviation • Cycling • Public transport • Rail transport • Road transport • Shipping • Spaceflight • Vehicles • Water transport Technology timelines ▼ Technology ► Technology portals ► Technology-related lists ► Technology by type ► Automation ► Communication ► Technical communication ► Technology companies ► Technological comparison ► Technology conventions ► Science and technology by country ► Documentary films about technology ► Energy ► Engineering ► Equipment ► Technology evangelism ► Fictional technology ► Films about technology ► Technology folklore ► High-technology business districts ► History of technology ► Hypothetical technology ► Technology images ► Industry ► Information technology ► Inventions ► Technology literature ► Science and technology by location ► Medical technology ► Mobile technology ► Technology neologisms ► Obsolete technologies ► Packaging ► Science parks ► Philosophy of technology ► Technology podcasts ► Projects ► Real-time technology ► Technology and inventions by region ► Science and engineering awards ► Technology in society ► Technology strategy ► Science and technology studies ► Technology systems ► Technicians ► Technological change ► Technology conferences ► Technology development ► Technology transfer ► Tools ► Technology trade associations ► Technical universities and colleges ► Technology websites ► Wireless ► Wikipedia books on technology ► Technology stubs Content listings Lists Featured content Overviews Portals Lists Outlines Glossaries Indexes Reference Culture Geography Health History Mathematics Nature People Philosophy Religion Society Technology Academic disciplines Anniversaries (today) Countries and territories Current events People (deaths this year) Timelines (centuries · decades) Indices A–Z index Categories Dewey Decimal classes Library of Congress Classification Roget's Thesaurus Spoken articles Wikipedia books