Wikipedia:Vital articles/Expanded

[edit] Actors and entertainers

1. Woody Allen
2. Fred Astaire
3. Humphrey Bogart
4. Marlon Brando
5. Charlie Chaplin
6. Marlene Dietrich
7. Clint Eastwood
8. Madonna
9. Marilyn Monroe
10. John Wayne

[edit] Artists

1. Paul Cézanne
2. Le Corbusier
3. Salvador Dalí
4. Albrecht Dürer
5. Vincent van Gogh
6. Francisco Goya
7. William Hogarth
8. Hokusai
9. Frida Kahlo
10. Édouard Manet
11. Henri Matisse
12. Michelangelo
13. Claude Monet
14. Georgia O'Keeffe
15. Pablo Picasso
16. Jackson Pollock
17. Nicolas Poussin
18. Raphael
19. Rembrandt
20. Auguste Rodin
21. Ludwig Mies van der Rohe
22. Diego Velázquez
23. Johannes Vermeer
24. Vitruvius
25. Andy Warhol
26. Christopher Wren
27. Frank Lloyd Wright

[edit] Authors

1. Dante Alighieri
2. Hans Christian Andersen
3. Aristophanes
4. Isaac Asimov
5. Jane Austen
6. William Blake
7. Bertolt Brecht
8. Lord Byron
9. Miguel de Cervantes
10. Anton Chekhov
11. Emily Dickinson
12. Fyodor Dostoevsky
13. Arthur Conan Doyle
14. Du Fu
15. Alexandre Dumas
16. F. Scott Fitzgerald
17. W. S. Gilbert
18. Brothers Grimm
19. Dashiell Hammett
20. Nathaniel Hawthorne
21. Ernest Hemingway
22. Hildegard of Bingen
23. Johann Wolfgang Goethe
24. Homer
25. Victor Hugo
26. Langston Hughes
27. Henrik Ibsen
28. James Joyce
29. Franz Kafka
30. Li Bai
31. Astrid Lindgren
32. Thomas Mann
33. Matsuo Bashō
34. Edna St. Vincent Millay
35. Arthur Miller
36. Molière
37. Murasaki Shikibu
38. Pablo Neruda
39. Edgar Allan Poe
40. Marcel Proust
41. Aleksandr Pushkin
42. Rainer Maria Rilke
43. Rumi
44. Carl Sandburg
45. Sappho
46. Jean-Paul Sartre
47. William Shakespeare
48. George Bernard Shaw
49. Mary Shelley
50. Sophocles
51. Robert Louis Stevenson
52. J. R. R. Tolkien
53. Leo Tolstoy
54. Mark Twain
55. Jules Verne
56. Virgil
57. H. G. Wells
58. Walt Whitman
59. Oscar Wilde
60. William Butler Yeats
61. Zeami Motokiyo

[edit] Composers and musicians

1. Johann Sebastian Bach
2. The Beatles
3. Ludwig van Beethoven
4. Frédéric Chopin
5. Antonín Dvořák
6. Aretha Franklin
7. Edvard Grieg
8. Gustav Mahler
9. Claudio Monteverdi
10. Wolfgang Amadeus Mozart
11. Elvis Presley
12. Gilbert and Sullivan
13. Jean Sibelius
14. Frank Sinatra
15. Richard Wagner

[edit] Directors and screenwriters

1. Ingmar Bergman
2. Walt Disney
3. Sergei Eisenstein
4. Alfred Hitchcock
5. Akira Kurosawa
6. Fritz Lang
7. George Lucas
8. Frances Marion
9. Leni Riefenstahl
10. Martin Scorsese
11. Aaron Sorkin
12. Steven Spielberg

[edit] Entrepreneurs

1. Andrew Carnegie
2. Henry Ford
3. Bill Gates
4. Howard Hughes
5. Donald Trump
6. Ted Turner
7. Sam Walton
8. George Westinghouse

[edit] Explorers

1. Roald Amundsen
2. Neil Armstrong
3. Willem Barents
4. Vitus Bering
5. Jacques Cartier
6. Christopher Columbus
7. James Cook
8. Hernán Cortés
9. Francis Drake
10. Juan Sebastián Elcano
11. Leif Ericson
12. Vasco da Gama
13. Yuri Gagarin
14. Edmund Hillary
15. Ferdinand Magellan
16. Tenzing Norgay
17. Marco Polo
18. Abel Tasman
19. Zheng He

[edit] Inventors, scientists and mathematicians

1. Muhammad ibn Musa al-Khwarizmi
2. Archimedes
3. Vladimir Arnold
4. Charles Babbage
5. John Logie Baird
6. Alexander Graham Bell
7. Karl Benz
8. Tim Berners-Lee
9. Niels Bohr
10. Tycho Brahe
11. Rachel Carson
12. Nicolaus Copernicus
13. Marie Curie
14. Charles Darwin
15. Diophantus
16. Thomas Edison
17. Albert Einstein
18. Euclid
19. Leonhard Euler
20. Pierre de Fermat
21. Enrico Fermi
22. Richard Feynman
23. Alexander Fleming
24. Joseph Fourier
25. Buckminster Fuller
26. Casimir Funk
27. Galileo Galilei
28. Carl Friedrich Gauss
29. Geber
30. Kurt Gödel
31. Johann Gutenberg
32. G. H. Hardy
33. David Hilbert
34. Christiaan Huygens
35. Hypatia of Alexandria
36. Edward Jenner
37. Johannes Kepler
38. John Maynard Keynes
39. Donald Knuth
40. Pierre-Simon Laplace
41. Gottfried Leibniz
42. Carolus Linnaeus
43. Ignacy Łukasiewicz
44. James Clerk Maxwell
45. Isaac Newton
46. Alfred Nobel
47. Hans Christian Ørsted
48. Blaise Pascal
49. Louis Pasteur
50. Henri Poincaré
51. Pythagoras
52. Srinivasa Ramanujan
53. Dennis Ritchie
54. Ole Rømer
55. Wilhelm Conrad Röntgen
56. Bernhard Riemann
57. Ernest Rutherford
58. Richard Stallman
59. Nikola Tesla
60. Linus Torvalds
61. Alan Turing
62. Nasir al-Din Tusi
63. Leonardo da Vinci
64. Wright brothers

[edit] Philosophers and social scientists

1. Thomas Aquinas
2. Aristotle
3. Augustine of Hippo
4. Averroes
5. Avicenna
6. Francis Bacon
7. Simone de Beauvoir
8. Benedict of Nursia
9. Isaiah Berlin
10. Jacques Derrida
11. René Descartes
12. Émile Durkheim
13. Ralph Waldo Emerson
14. Michel Foucault
15. Francis of Assisi
16. Sigmund Freud
17. Milton Friedman
18. Edward Gibbon
19. Johann Wolfgang von Goethe
20. Antonio Gramsci
21. Germaine Greer
22. Georg Wilhelm Friedrich Hegel
23. Herodotus
24. Hippocrates
25. David Hume
26. Immanuel Kant
27. John Maynard Keynes
28. Ibn Khaldun
29. Søren Kierkegaard
30. Thomas Samuel Kuhn
31. John Locke
32. Rosa Luxemburg
33. Seymour Martin Lipset
34. Niccolò Machiavelli
35. Karl Marx
36. Maimonides
37. Hans Morgenthau
38. Nagarjuna
39. Friedrich Nietzsche
40. Thomas Paine
41. Ivan Pavlov
42. Plato
43. Sima Qian
44. John Rawls
45. Stein Rokkan
46. Jean-Jacques Rousseau
47. Bertrand Russell
48. Adam Smith
49. Socrates
50. Baruch Spinoza
51. Sun Tzu
52. Thales
53. Voltaire
54. Max Weber
55. Ludwig Wittgenstein

[edit] Religious figures

1. Abraham
2. Ali
3. Báb
4. Bahá'u'lláh
5. Gautama Buddha
6. John Calvin
7. Confucius
8. Guru Gobind Singh
9. Jesus
10. Laozi
11. Martin Luther
12. Moses
13. Muhammad
14. Guru Nanak Dev
15. Paul the Apostle
16. Umar
17. Zoroaster

[edit] Politicians and leaders

1. Akbar
2. Alexander the Great
3. Kofi Annan
4. Kemal Atatürk
5. Attila the Hun
6. Augustus
7. Hastings Banda
8. Pope Benedict XVI
9. Silvio Berlusconi
10. Otto von Bismarck
11. Tony Blair
12. Simón Bolívar
13. Napoleon I of France
14. Lucrezia Borgia
15. Gro Harlem Brundtland
16. George W. Bush
17. Fidel Castro
18. Catherine II of Russia
19. Julius Caesar
20. Charlemagne
21. Jacques Chirac
22. Empress Dowager Cixi
23. Winston Churchill
24. Cleopatra VII
25. Cyrus the Great
26. Diana, Princess of Wales
27. Indira Gandhi
28. Constantine I (emperor)
29. Elizabeth I of England
30. Elizabeth II of the United Kingdom
31. Archduke Franz Ferdinand of Austria
32. Charles de Gaulle
33. Mikhail Gorbachev
34. Hammurabi
35. Hannibal
36. Hirohito
37. Adolf Hitler
38. Thomas Jefferson
39. Pope John Paul II
40. Genghis Khan
41. Lee Kuan Yew
42. Vladimir Lenin
43. Abraham Lincoln
44. Nelson Mandela
45. Mao Zedong
46. Maria Theresa of Austria
47. Mary I of Scotland
48. Golda Meir
49. Christian Michelsen
50. Mahathir bin Mohamad
51. Benito Mussolini
52. Napoleon I of France
53. Nefertiti
54. Kwame Nkrumah
55. Sardar Vallabhbhai Patel
56. Eva Perón
57. Peter I of Russia
58. Józef Piłsudski
59. Pol Pot
60. Vladimir Putin
61. Qin Shi Huang
62. Eleanor Roosevelt
63. Franklin D. Roosevelt
64. Saladin
65. Gerhard Schröder
66. Haile Selassie I of Ethiopia
67. Semiramis
68. Shaka
69. Queen of Sheba
70. Sitting Bull
71. Joseph Stalin
72. Margaret Thatcher
73. Josip Broz Tito
74. Timur
75. Leon Trotsky
76. Harry S. Truman
77. Victoria of the United Kingdom
78. Lech Wałęsa
79. George Washington
80. Wilhelm II of Germany

[edit] Revolutionaries and activists

1. Joan of Arc
2. Mahatma Gandhi
3. Emma Goldman
4. Che Guevara
5. Mother Jones
6. Helen Keller
7. Ruhollah Khomeini
8. Martin Luther King, Jr.
9. Ho Chi Minh
10. Osama bin Laden
11. Florence Nightingale
12. Rosa Parks
13. Emilia Plater
14. Gavrilo Princip
15. Mother Teresa
16. Sojourner Truth
17. Harriet Tubman

1. History
2. Civilization
3. History of the world
4. History of Africa
5. History of the Americas
6. History of Australia
7. History of China
8. History of Europe
9. History of the European Union
10. History of India
11. History of Japan
12. History of the Middle East
13. History of Russia
14. History of the United States

[edit] Prehistory to Renaissance

1. Prehistory
   1. Human evolution
2. Stone Age
   1. Mesoamerica
   2. Mesopotamia
   3. Neolithic Revolution
   4. Sumer
3. Bronze Age
   1. Ancient Egypt
   2. Assyria
   3. Indus Valley Civilization
   4. Maya civilization
   5. Minoan civilization
4. Iron Age
   1. Ancient Greece
   2. Ancient Rome
   3. Macedon
   4. Maurya Empire
   5. Persian Empire
   6. Punic Wars
   7. Roman-Persian Wars
   8. Roman Empire
   9. Silk Road
5. Middle Ages
   1. Aztec
   2. Black Death
   3. Byzantine Empire
   4. Crusades
   5. Decline of the Roman Empire
   6. East-West Schism
   7. Fall of Constantinople
   8. Han Dynasty
   9. Holy Roman Empire
   10. Hundred Years' War
   11. Inca Empire
   12. Islamic conquest of Persia
   13. Islamic Golden Age
   14. Knights Templar
   15. Mongol Empire
   16. Norman conquest of England
   17. Ottoman Empire
   18. Seljuq dynasty
   19. Song Dynasty
   20. Tang Dynasty
   21. Viking Age
   22. Yuan Dynasty
6. Renaissance
   1. Age of Discovery
   2. British Empire
   3. Counter-Reformation
   4. Eighty Years' War
   5. English Civil War
   6. European colonization of the Americas
   7. Little Ice Age
   8. Ming Dynasty
   9. Mughal Empire
   10. Polish-Lithuanian Commonwealth
   11. Protestant Reformation
   12. Scientific Revolution
   13. Spanish conquest of Mexico
   14. Spanish Empire
   15. Spanish Inquisition
   16. Wars of the Roses

[edit] Modern history

1. Modern history
2. 1973 oil crisis
3. Abolitionism
4. Age of Enlightenment
5. American Civil War
6. American Revolutionary War
7. Anglo-Zulu War
8. Armenian Genocide
9. History of South Africa in the apartheid era
10. Atomic bombings of Hiroshima and Nagasaki
11. Berlin Wall
12. Boxer Rebellion
13. British Raj
14. Chinese Civil War
15. Civil rights movement
16. Cold War
17. Congress of Vienna
18. Crimean War
19. Cuban Missile Crisis
20. Decolonization
21. Declaration of the Establishment of the State of Israel
22. European integration
23. Franco-Prussian War
24. French Revolution
25. French Revolutionary Wars
26. First Sino-Japanese War
27. German reunification
28. Great Depression
29. Great Leap Forward
30. Great Northern War
31. Great Purge
32. Gulf War
33. Haitian Revolution
34. The Holocaust
35. Indian Emergency (1975–1977)
36. Indian independence movement
37. Indian Rebellion of 1857
38. Industrial Revolution
39. Information Age
40. Iranian revolution
41. Irish Potato Famine
42. Iron Curtain
43. Italian unification
44. Korean War
45. Manhattan Project
46. Meiji Restoration
47. Mexican–American War
48. Napoleonic Wars
49. Nazi Germany
50. New Imperialism
51. Northwest Indian War
52. Opium Wars
53. Partition of India
54. Partitions of Poland
55. Pearl Harbor
56. Philippine-American War
57. Polish-Soviet War
58. Qing Dynasty
59. Revolutions of 1848
60. Russian Civil War
61. Russian Empire
62. Russian Revolution of 1905
63. Russian Revolution of 1917
64. Russo-Japanese War
65. Scramble for Africa
66. Second Boer War
67. Second Sino-Japanese War
68. Solidarity
69. September 11, 2001 attacks
70. Soviet Union
71. Soviet war in Afghanistan
72. Space exploration
73. Space Race
74. Spanish-American War
75. Spanish Civil War
76. Spanish flu
77. Taiping Rebellion
78. Tiananmen Square protests of 1989
79. Treaty of Paris (1814)
80. Treaty of Versailles
81. Unification of Germany
82. Vietnam War
83. Wall Street Crash of 1929
84. War of the Austrian Succession
85. War of the Spanish Succession
86. Women's suffrage
87. World War I
88. World War II
89. Wounded Knee Massacre
90. Xinhai Revolution

1. Geography
2. Capital
3. City
4. Continent
5. Country
6. Desert
7. Glacier
8. Map
9. Mountain
10. North Pole
11. Ocean
12. Rainforest
13. River
14. Sea
15. South Pole

[edit] Bodies of water

1. Amazon River
2. Aral Sea
3. Arctic Ocean
4. Atlantic Ocean
5. Baltic Sea
6. Black Sea
7. Caspian Sea
8. Dead Sea
9. Great Barrier Reef
10. Great Lakes
11. Lake Baikal
12. Lake Tanganyika
13. Lake Titicaca
14. Lake Victoria
15. Indian Ocean
16. Mediterranean Sea
17. Mississippi River
18. North Sea
19. Niagara Falls
20. Nile
21. Pacific Ocean
22. Panama Canal
23. Suez Canal
24. Southern Ocean

[edit] Cities

1. Athens
2. Bangkok
3. Barcelona
4. Beijing
5. Belgrade
6. Berlin
7. Brussels
8. Cairo
9. Copenhagen
10. Dhaka
11. Edinburgh
12. Frankfurt
13. Hanoi
14. Hong Kong
15. Istanbul
16. Jakarta
17. Jerusalem
18. London
19. Los Angeles
20. Manila
21. Madrid
22. Mecca
23. Mexico City
24. Moscow
25. Mumbai
26. Munich
27. Nairobi
28. New Delhi
29. New York City
30. Paris
31. Rio de Janeiro
32. Rome
33. Saint Petersburg
34. São Paulo
35. Seoul
36. Shanghai
37. Singapore
38. Stockholm
39. Sydney
40. Taipei
41. Tokyo
42. Toronto
43. Vatican City
44. Vienna
45. Warsaw
46. Washington, D.C.

[edit] Continents and regions

1. Africa
2. Antarctica
3. Arctic
4. Asia
5. Europe
6. Latin America
7. Middle East
8. North America
9. Oceania
10. South America

[edit] Countries

See also List of countries and List of countries by population.

1. Afghanistan
2. Australia
3. Austria
4. Bangladesh
5. Belgium
6. Brazil
7. Canada
8. People's Republic of China
9. Democratic Republic of the Congo
10. Cuba
11. Denmark
12. Egypt
13. Ethiopia
14. France
15. Germany
16. Greece
17. India
18. Indonesia
19. Iraq
20. Iran
21. Republic of Ireland
22. Israel
23. Italy
24. Japan
25. Kazakhstan
26. Libya
27. Mexico
28. Monaco
29. Mongolia
30. Nepal
31. Netherlands
32. Niger
33. Nigeria
34. North Korea
35. Norway
36. Pakistan
37. Peru
38. Philippines
39. Poland
40. Russia
41. Rwanda
42. Saudi Arabia
43. Singapore
44. South Africa
45. South Korea
46. Spain
47. Sudan
48. Sweden
49. Switzerland
50. Republic of China (Taiwan)
51. Thailand
52. Turkey
53. Ukraine
54. United Kingdom
55. United States
56. Vietnam

[edit] Mountains, valleys and deserts

1. Alps
2. Andes
3. Gobi Desert
4. Grand Canyon
5. Great Rift Valley
6. Himalayas
7. Mount Everest
8. Mount Kilimanjaro
9. Rocky Mountains
10. Sahara

1. Art
2. History of art
3. Aesthetics

[edit] Architecture

1. Architecture
2. Specific structures
   1. Angkor Wat
   2. Aswan Dam
   3. Buckingham Palace
   4. Colosseum
   5. Eiffel Tower
   6. Empire State Building
   7. Great Wall of China
   8. The Kremlin
   9. Parthenon
   10. Sears Tower
   11. Sydney Opera House
   12. Stonehenge
   13. Taj Mahal
3. Seven Wonders of the World
   1. Colossus of Rhodes
   2. Great Pyramid of Giza
   3. Hanging Gardens of Babylon
   4. Lighthouse of Alexandria
   5. Mausoleum of Maussollos
   6. Statue of Zeus at Olympia
   7. Temple of Artemis

[edit] Literature

1. Literature
2. Fiction
3. Book
   1. Republic (Plato)
   2. The Book of One Thousand and One Nights
4. Novel
   1. Don Quixote
   2. The Lord of the Rings
5. Poetry
   1. Epic of Gilgamesh
   2. Iliad
   3. Mahabharata
   4. Odyssey
   5. Shahname

[edit] Music

1. Music
2. Song
3. Specific music genres
   1. Baroque music
   2. European classical music
      1. Opera
      2. Symphony
   3. Folk music
   4. Gamelan
   5. Hip hop music
   6. Jazz
   7. Pop music
   8. Reggae
   9. Rhythm and blues
      1. Soul music
   10. Rock music
       1. Heavy metal music
4. Specific musical instruments
   1. Drum
   2. Flute
   3. Guitar
   4. Piano
   5. String instrument
   6. Trumpet
   7. Violin

[edit] Performing arts

1. Performing arts
2. Acrobatics
3. Comedy
4. Dance
5. Film
   1. Animation
   2. Silent film
   3. Studio system
6. Magic
7. Theatre
   1. Broadway theatre
   2. Noh

[edit] Visual arts

1. Visual arts
2. Comics
3. Drawing
4. Fashion
5. Painting
   1. Mona Lisa
   2. The Night Watch
   3. The Scream
6. Pottery
7. Sculpture
   1. The Thinker

[edit] Philosophy

1. Philosophy
   1. Eastern philosophy
   2. Western philosophy
2. Beauty
3. Ethics
4. Epistemology
   1. Belief
   2. Knowledge
   3. Truth
5. Dialectic
6. Experience
7. Free will
8. Logic
9. Metaphysics
   1. Existence
   2. Ontology
   3. Reality
10. Morality

[edit] Philisophical schools and traditions

1. Epistemological philosophies
   1. Empiricism
   2. Naturalism
   3. Rationalism
   4. Reductionism
2. Metaphysical philosophies
   1. Determinism
   2. Dualism
   3. Idealism
   4. Materialism
   5. Monism
3. Moral philosophies
   1. Nihilism
   2. Pragmatism
   3. Relativism
   4. Utilitarianism
4. Philosophical movements
   1. Existentialism
   2. Humanism
   3. Logical positivism
   4. Modernism
   5. Objectivism
   6. Positivism
   7. Postmodernism
   8. Platonic realism
   9. Romanticism
   10. Skepticism
   11. Stoicism
5. Theistic philosophies
   1. Theism
   2. Agnosticism
   3. Atheism
   4. Deism
   5. Fundamentalism
   6. Gnosticism
   7. Panentheism
   8. Pantheism

[edit] Religion

1. Religion
2. Deity
   1. God
   2. Goddess
3. Festival
4. Holiday
5. Mythology
   1. Greek mythology
6. Mysticism
   1. Astrology
7. Soul
8. Spiritual practice
   1. Meditation
   2. Prayer
   3. Yoga
9. Spirituality

[edit] Specific religions

1. Bahá'í Faith
2. Buddhism
   1. Mahayana
   2. Theravada
   3. Vajrayana
3. Christianity
   1. Bible
   2. Catholicism
      1. Roman Catholic Church
   3. Church
   4. Eastern Orthodox Church
   5. Protestantism
   6. Pope
   7. Trinity
4. Confucianism
5. Hinduism
   1. Bhagavad Gita
   2. Brahma
   3. Brahman
   4. Krishna
   5. Shiva
   6. Upanishad
   7. Veda
   8. Vedanta
   9. Vishnu
   10. Yoga
6. Islam
   1. Allah
   2. Mosque
   3. Shi'a Islam
   4. Sunni Islam
   5. Sufism
   6. Qur'an
7. Jainism
8. Judaism
   1. Torah
   2. Talmud
9. Shinto
10. Sikhism
    1. Golden Temple
    2. Guru Granth Sahib
11. Taoism
12. Unitarianism
13. Voodoo
14. Zoroastrianism

1. Clothing
2. Communication
3. Cooking
4. Color
   1. Black
   2. Blue
   3. Green
   4. Red
   5. Yellow
   6. White
5. Information

[edit] Family and relationships

1. Family
2. Adult
3. Boy
4. Child
5. Courtship
6. Girl
7. Human sexuality
   1. Man
   2. Woman
8. Infant
9. Marriage
   1. Husband
   2. Wife

[edit] Thought, behavior and emotion

1. Consciousness
2. Emotion
   1. Anger
   2. Fear
   3. Happiness
   4. Hate
   5. Love
   6. Sadness
3. Mind
4. Sleep
   1. Dream
5. Thought

[edit] Food and drink

1. Food
2. Barley
3. Bread
4. Cereal
   1. Barley
   2. Maize
   3. Oat
   4. Rice
   5. Sorghum
   6. Wheat
5. Cheese
6. Chocolate
7. Fruit
   1. Apple
   2. Banana
   3. Grape
   4. Legume
      1. Soybean
   5. Lemon
   6. Nut
   7. Orange
8. Honey
9. Meat
10. Rice
11. Soybean
12. Sugar
13. Vegetable
    1. Potato
14. Alcoholic beverage
    1. Beer
    2. Wine
15. Coffee
16. Cola
17. Drinking water
18. Milk
19. Tea

[edit] Language

1. Language
2. Alphabet
   1. Letter (alphabet)
   2. Chinese character
   3. Cyrillic alphabet
   4. Greek alphabet
   5. Latin alphabet
   6. Phoenician alphabet
3. Dialect
4. Grammar
   1. Noun
   2. Syntax
   3. Verb
5. Linguistics
6. Literacy
7. Pronunciation
8. Word
9. Writing

[edit] Specific languages

1. Arabic language
2. Bengali language
3. Chinese language
4. English language
5. Esperanto
6. French language
7. German language
8. Greek language
9. Hebrew language
10. Hindi
11. Japanese language
12. Latin
13. Portuguese language
14. Russian language
15. Sanskrit
16. Spanish language
17. Tamil language
18. Turkish language
19. Punjabi language

[edit] Recreation and entertainment

1. Recreation
2. Entertainment
3. Game
   1. Backgammon
   2. Board game
   3. Chess
   4. Dice
   5. Draughts
   6. Go (board game)
   7. Mancala
   8. Playing card
   9. Video game
4. Gambling
5. Leisure
6. Martial arts
   1. Judo
   2. Karate
7. Party
8. Sport
   1. American football
      1. National Football League
      2. Super Bowl
   2. Athletics (track and field)
   3. Auto racing
      1. Formula One
      2. NASCAR
   4. Badminton
   5. Baseball
      1. Major League Baseball
      2. New York Yankees
      3. Boston Red Sox
   6. Basketball
      1. National Basketball League
   7. Boxing
   8. Cricket
   9. Fencing
   10. Football (soccer)
       1. FIFA World Cup
   11. Hockey
       1. Ice hockey
   12. Olympic Games
   13. Rugby football
   14. Tennis
   15. Volleyball
   16. Water polo
   17. Wrestling
9. Toy

1. Society
2. Culture
3. Community
4. Demographics

[edit] Social issues

1. Abortion
2. Abuse
3. Birth control
4. Capital punishment
5. Civil rights
6. Discrimination
   1. Racism
   2. Sexism
7. Euthanasia
8. Freedom
9. Human rights
10. Justice
11. Poverty
12. Sustainable development
13. Slavery
14. Social movement
    1. Feminism
15. World peace

[edit] Education

1. Education
2. College
3. School
4. University
5. Specific educational institutions
   1. Cambridge
   2. Harvard
   3. Oxford
   4. Princeton
   5. Yale

[edit] Business and economics

1. Business
2. Economics
   1. Macroeconomics
   2. Microeconomics
   3. Good (economics and accounting)
   4. Service
   5. Supply and demand
3. Capital
4. Company (law)
5. Corporation
6. Currency
   1. Euro
   2. Japanese yen
   3. Pound sterling
   4. Renminbi
   5. Rupee
   6. United States dollar
7. Employment
8. Finance
9. Industry
   1. Agriculture
   2. Manufacturing
   3. Mining
   4. Refining
10. Market
11. Money
12. Tourism

[edit] Law

1. Law
2. Crime
3. Constitution
4. Specific documents
   1. Magna Carta
   2. Leviathan
   3. The Communist Manifesto

[edit] Media

1. Advertising
2. Broadcasting
3. Journalism
4. Citizen journalism
5. Magazine
6. Mass media
7. News
8. Newspaper
9. Publishing

[edit] Politics and government

1. Politics
2. Government
3. Capitalism
4. Civics
   1. Anarchism
   2. Communism
   3. Democracy
   4. Dictatorship
   5. Fascism
   6. Marxism
   7. Monarchy
   8. Republic
   9. Socialism
   10. Theocracy
5. Diplomacy
6. Globalization
7. Imperialism
8. Liberalism
9. Nationalism
10. Political party
11. Separation of powers
12. State

[edit] International organizations

1. African Union
2. Arab League
3. Association of Southeast Asian Nations
4. Commonwealth of Independent States
5. Commonwealth of Nations
6. Council of Europe
7. European Union
8. Geneva Conventions
9. International Red Cross and Red Crescent Movement
10. Interpol
11. NATO
12. Nobel Prize
13. Organisation for Economic Co-operation and Development
14. Organization for Security and Co-operation in Europe
15. Organization of American States
16. Organization of the Petroleum Exporting Countries
17. United Nations
    1. International Atomic Energy Agency
    2. International Court of Justice
    3. International Criminal Court
    4. International Monetary Fund
    5. UNESCO
    6. United Nations Children's Fund
    7. Universal Declaration of Human Rights
    8. World Bank Group
    9. World Health Organization
    10. World Trade Organization

[edit] Social sciences

1. Social sciences
2. Anthropology
3. Archaeology
4. Political science
5. Psychology
6. Sociology

[edit] War and military

1. Aerial warfare
2. Military
   1. Army
      1. Artillery
      2. Cavalry
      3. Infantry
   2. Navy
3. Peace
4. War

[edit] Health and fitness

1. Health
2. Health care
3. Physical fitness
4. Physical exercise
5. Body Mass Index
6. Obesity
7. Weight loss
8. Hygiene
9. Stress
10. Suicide
11. Nutrition
    1. Diet
    2. Dietary supplement
    3. Food groups
    4. Malnutrition
12. Substance abuse
    1. Addiction
    2. Alcoholism
       1. Cirrhosis
    3. Drug addiction
13. Drug
    1. Caffeine
    2. Cannabis
    3. Cocaine
    4. Ethanol
    5. Nicotine
       1. Tobacco
    6. Opium

[edit] Medicine

1. Medicine
2. Medication
3. Dentistry
4. Disability
   1. Blindness
   2. Hearing impairment
5. Disease
6. Mental illness
   1. Dementia
   2. Alzheimer's disease
7. Cancer
   1. Lung cancer
8. Diabetes mellitus
9. Parkinson's disease
10. Heart disease
11. Hypertension
12. Infectious disease
    1. Cholera
    2. Common cold
    3. Dysentery
    4. Influenza
       1. H5N1
    5. Malaria
    6. Pneumonia
    7. Sexually transmitted disease
       1. AIDS
       2. Syphilis
    8. Smallpox
    9. Tuberculosis
13. Stroke
14. Virus

1. Science
2. History of science
3. Nature
4. Philosophy of science
5. Scientific method

[edit] Astronomy

1. Astronomy
2. Asteroid
3. Asteroid belt
4. Big Bang
5. Black hole
6. Comet
7. Eclipse
8. Galaxy
   1. Milky Way
9. Natural satellite
10. Kuiper belt
11. Orbit
12. Physical cosmology
13. Planet
14. Solar System
    1. Sun
    2. Mercury
    3. Venus
    4. Earth
       1. Moon
    5. Mars
    6. Ceres
    7. Jupiter
       1. Io
       2. Europa
       3. Ganymede
       4. Callisto
    8. Saturn
       1. Titan
    9. Uranus
    10. Neptune
        1. Triton
    11. Pluto
    12. Eris
15. Star
16. Supernova
17. Universe

[edit] Biology

1. Biology
2. Life
   1. Death
3. Botany
4. Organic compound
   1. Carbohydrate
   2. Hormone
   3. Fat
      1. Fatty acid
      2. Lipid
   4. Enzyme
   5. Protein
5. Ecology
   1. Ecosystem
   2. Endangered species
   3. Extinction
6. Scientific classification
   1. Species
7. Evolution
   1. Natural selection
8. Genetics
   1. DNA
   2. Genes
   3. Heredity
9. Origin of life
10. Species
11. Zoology

[edit] Anatomy

1. Anatomy
2. Cell
3. Circulatory system
   1. Blood
   2. Heart
4. Endocrine system
5. Gastrointestinal tract
   1. Colon
   2. Small intestine
   3. Liver
6. Immune system
7. Integumentary system
   1. Breast
   2. Skin
8. Nervous system
   1. Brain
   2. Sensory system
      1. Auditory system
         1. Ear
      2. Gustatory system
      3. Olfactory system
      4. Somatosensory system
      5. Visual system
         1. Eye
9. Reproductive system
   1. Penis
   2. Vagina
10. Respiratory system
    1. Lung
11. Skeleton

[edit] Biological processes

1. Metabolism
   1. Digestion
      1. Excretion
   2. Photosynthesis
   3. Respiration
2. Evolution
3. Biological reproduction
   1. Asexual reproduction
   2. Sexual reproduction
      1. Heterosexuality
      2. Homosexuality
      3. Pregnancy
      4. Sex
         1. Female
         2. Male
      5. Sexual intercourse

[edit] Organisms

1. Organism
2. Animal
   1. Arthropod
      1. Insect
         1. Ant
         2. Bee
         3. Butterfly
      2. Arachnid
   2. Chordate
      1. Amphibian
         1. Frog
      2. Bird
         1. Dove
         2. Eagle
      3. Fish
         1. Shark
      4. Mammal
         1. Ape
         2. Bat
         3. Bear
         4. Camel
         5. Cat
         6. Cattle
         7. Dog
         8. Dolphin
         9. Elephant
            1. Mammoth
         10. Horse
         11. Human
         12. Sheep
         13. Lion
         14. Pig
         15. Whale
      5. Reptile
         1. Dinosaur
         2. Snake
3. Archaea
4. Bacteria
5. Fungus
6. Plant
   1. Flower
   2. Tree
7. Protist

[edit] Chemistry

1. Chemistry
2. Biochemistry
3. Organic chemistry
4. Inorganic chemistry
5. Acid
6. Alloy
   1. Brass
   2. Bronze
   3. Steel
7. Base
8. Catalysis
9. Chemical bond
10. Chemical compound
    1. Alcohol
    2. Carbon dioxide
    3. Hydrochloric acid
    4. Oil
    5. Salt
    6. Water
11. Chemical element
    1. List of elements
    2. Periodic table
    3. Aluminium
    4. Carbon
       1. Diamond
       2. Graphite
    5. Copper
    6. Gold
    7. Helium
    8. Hydrogen
    9. Iron
    10. Lead
    11. Lithium
    12. Magnesium
    13. Mercury
    14. Neon
    15. Nitrogen
    16. Oxygen
    17. Plutonium
    18. Silicon
    19. Silver
    20. Sulfur
    21. Tin
    22. Uranium
    23. Zinc
12. Chemical reaction
13. Crystal
14. Electrolysis
15. Glass
16. Ion
17. Metal
18. Mineral
19. Molecule
20. Periodic table
21. Phase
    1. Gas
    2. Liquid
    3. Plasma
    4. Solid
22. Silicate

[edit] Earth science

1. Earth science
2. History of Earth
3. Geology
   1. Crust
   2. Erosion
   3. Geologic fault
   4. Mantle
   5. Plate tectonics
   6. Rock
      1. Basalt
      2. Flint
      3. Igneous rock
      4. Limestone
      5. Magma
      6. Sedimentary rock
   7. Volcano
4. Earth's atmosphere
   1. Climate
   2. Cloud
   3. El Niño
   4. Global warming
   5. Meteorology
   6. Precipitation
      1. Acid rain
      2. Hail
      3. Rain
      4. Snow
   7. Weather
5. Natural disaster
   1. Avalanche
   2. Flood
   3. Earthquake
   4. Tornado
   5. Tropical cyclone
   6. Tsunami
6. Oceanography

[edit] Physics

1. Physics
2. Atom
3. Particle physics
   1. Standard Model
   2. Particle accelerator
   3. Subatomic particle
      1. Electron
      2. Neutrino
      3. Neutron
      4. Photon
      5. Proton
      6. Quark
4. Classical mechanics
   1. Newton's laws of motion
5. Energy
   1. Light
   2. Electromagnetic radiation
      1. Infrared
      2. Visual spectrum
      3. Ultraviolet
      4. Gamma ray
   3. Kinetic energy
   4. Potential energy
6. Force
   1. Electromagnetism
   2. Gravitation
   3. Strong force
   4. Weak force
7. Heat
   1. Temperature
8. Isotope
9. Mass
   1. Weight
10. Matter
11. Motion
    1. Acceleration
    2. Speed
    3. Velocity
12. Quantum mechanics
13. Sound
14. Space
15. Speed of light
16. Thermodynamics
17. Theory of relativity
18. Time

1. Technology
2. History of technology
3. Engineering
4. Artificial intelligence
5. Biotechnology
6. Genetic Engineering
7. Nanotechnology
8. Nuclear technology
9. Cotton
10. Coinage
11. Tool
12. Irrigation
    1. Plough

[edit] Electronics

1. Electronics
   1. Capacitance
   2. Gain
   3. Electric charge
   4. Current
   5. Electrical resistance
   6. Frequency
   7. Inductance
   8. Reactance
2. Components
   1. Battery
   2. Capacitor
   3. Diode
   4. Incandescent light bulb
   5. Inductor
   6. Integrated circuit
   7. Resistor
   8. Semiconductor
   9. Transformer
   10. Transistor

[edit] Energy and raw materials

1. Electricity
2. Fossil fuel
   1. Coal
   2. Gas
   3. Oil
3. Geothermal power
4. Hydropower
5. Nuclear power
6. Renewable energy
7. Solar power
8. Wind power
9. Glass
10. Paper
11. Plastic
12. Wood

[edit] Food and health

1. Electrocardiogram
2. Magnetic resonance imaging
3. Pasteurization
4. Penicillin
5. Refrigerator
6. Stove
7. Vaccine
8. X-ray

[edit] Information technology

1. Information technology
2. Computer science
   1. Algorithm
3. Abacus
4. Calculator
5. Computer
   1. Boot loader
   2. Hard disk
   3. Motherboard
   4. Processor
   5. RAM
6. Cryptography
7. Operating system
   1. BSD
   2. Linux
   3. Mac OS
   4. Microsoft Windows
   5. Unix
8. Programming language
   1. BASIC
   2. C++
   3. Java programming language
   4. PHP
9. Software
10. User interface
    1. Keyboard
    2. Monitor
    3. Mouse

[edit] Material and chemical

1. Fire
2. Explosive material
   1. Dynamite
   2. Gasoline
   3. Gunpowder
   4. Kerosene
3. Metallurgy
4. Plastic
5. Rubber

[edit] Mechanical and structural engineering

1. Mechanical engineering
2. Engine
   1. Electric motor
   2. Internal combustion engine
   3. Jet engine
   4. Steam engine
3. Inclined plane
4. Lever
5. Pulley
6. Robot
7. Screw
8. Wedge
9. Wheel
10. Structural engineering
11. Arch
12. Bridge
13. Canal
14. Dam
15. Dome
16. House
17. Nail
18. Pyramid
19. Tower

[edit] Media and communication

1. Telecommunication
2. Compact disc
3. Internet
   1. E-mail
   2. Internet protocol
   3. TCP
   4. World Wide Web
      1. Web browser
   5. HTTP
   6. HTML
4. Microphone
5. Mobile phone
6. Photography
7. Printing press
8. Printing
9. Radio
10. Telegraph
11. Telephone
12. Television
13. Typewriter
14. Video

[edit] Navigation and timekeeping

1. Calendar
   1. Chinese calendar
   2. Gregorian calendar
2. Clock
3. Compass
4. Global Positioning System
5. Gyroscope
6. Pendulum
7. Radar
8. Sonar
9. Sundial

[edit] Optical

1. Camera
2. Glasses
3. Laser
4. Lens
5. Microscope
6. Prism
7. Telescope

[edit] Space

1. Atacama Large Millimeter Array
2. Great Observatories program
3. Herschel Space Observatory
4. Hubble Space Telescope
5. International Space Station
6. Project Apollo
7. Rocket
8. Satellite
9. Space Shuttle
10. Space station

[edit] Transportation

1. Transport
2. Vehicle
3. Aircraft
4. Automobile
5. Bicycle
6. Boat
7. Elevator
8. Helicopter
9. Fixed-wing aircraft
10. Motorcycle
11. Railroad
12. Rapid transit
13. Ship
14. Stirrup
15. Train

[edit] Weapons

1. Weapon
2. Artillery
3. Axe
4. Bow
5. Firearm
6. Pistol
7. Knife
8. Machine gun
9. Nuclear weapon
10. Rifle
11. Spear
12. Submarine
13. Sword
14. Tank

1. Mathematics
   1. Constant
      1. Pi
      2. e
   2. Differential equation
   3. Digit
   4. Equation
   5. Exponentiation
   6. Function
   7. Infinity
   8. Limit
   9. Logarithm
   10. Number
       1. Complex number
       2. Integer
       3. Natural number
       4. Rational number
       5. Real number
   11. Series
   12. Square root
   13. Variable
2. Algebra
3. Analysis
4. Arithmetic
   1. Addition
   2. Division
   3. Fraction
   4. Multiplication
   5. Percentage
   6. Subtraction
5. Calculus
   1. Derivative
   2. Integral

1. Chaos theory
   1. Fractal
2. Game theory
3. Geometry
   1. Angle
   2. Area
   3. Coordinates
      1. Polar coordinate system
      2. Cartesian coordinate system
   4. Line
   5. Plane
   6. Shape
      1. Circle
      2. Square
      3. Triangle
   7. Volume
4. Group theory
5. Linear algebra
   1. Matrix
6. Mathematical logic
   1. Axiom
   2. Induction
   3. Proof
   4. Reductio ad absurdum
7. Number theory
   1. Prime number
8. Probability
   1. Statistics
   2. Probability theory
9. Set theory
   1. Set
10. Topology
11. Trigonometry
    1. Trigonometric function

1. Measurement
2. Metric system
3. International System of Units
4. Imperial unit
5. Time
   1. Second
   2. Day
   3. Week
   4. Month
   5. Year
6. Length
   1. Foot
   2. Metre
   3. Kilometre
   4. Mile
   5. Light-year
7. Angle
   1. Degree
   2. Radian

1. Volume
   1. Gallon
   2. Litre
2. Mass
   1. Kilogram
   2. Ton
   3. Pound
3. Temperature
   1. Celsius
   2. Fahrenheit
   3. Kelvin
4. Force
   1. Newton
5. Power
   1. Watt
6. Electromagnetism
   1. Ampere
   2. Volt
   3. Ohm
   4. Hertz