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    3346317BCE - 2637BCE

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    2637BCE - 909BCE

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    Public health

    Public health is the science and art of preventing disease, …

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    Decorative arts

    The decorative arts are arts or crafts concerned with the …

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    Faith, derived from Latin fides and Old French feid, …

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    Science (from Latin scientia, meaning "knowledge") s a systematic …

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    Mineralogy is a subject of geology specializing in the scientific …

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    Hydrology is the scientific study of the movement, distribution, and …

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    religious movement

    A religious movement is a religious or spiritual group that …

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    Oceanography (compound of the Greek words meaning "ocean" and  "write"), …

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    Christology is the field of study within Christian theology which … See More


    Economics is the social science that analyzes the production, distribution, … See More

    Natural history

    Natural history, which begins with Aristotle and other ancient philosophers …

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    Conchology (from Ancient Greek:  konkhos, "cockle") is the study of …

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    Meteorology is a branch of the atmospheric sciences which includes …

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    Photography is the science, art, application and practice of creating …

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    Horology (via Latin horologium; literally "the study of time") is …

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    Ornithology is a branch of zoology that concerns the study …

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    political movement

    In the social sciences, a political movement is a social …

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    social movements

    A social movement is a loosely organized effort by a …

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    A set of outdoor activities that involves ascending mountains, mountaineering-related …

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    Ichthyology (from Greek: ikhthus, "fish"; and logos, "study"), …

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    art movements

    An art movement is a tendency or style in art …

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    Taxonomy (from Ancient Greek:  taxis, "arrangement", and  -nomia, "method") is …

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    This thread include a detailed history of the discovery of … See More

    Human Migration

    Human migration is the movement of people from one place …

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    Wild animals

    Wild animals are to most societies fish and game, which …

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    Water, which covers 71% of the Earth's surface, is vital …

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    Arms and armor

    A weapon, arm, or armament is any device used in …

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    Hides and feathers

    Hides are the "skins" of large animals, e.g. cow, buffalo; …

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    Gem materials

    Gem materials include such naturally occurring transparent minerals as diamond, …

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    Domestic animals

    Domesticated animals are those populations whose behavior, life cycle, or …

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    Colorants, as commodities, include dyes, pigments, inks, paints, stains, and …

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    Grains and produce

    Grains include amaranth, barley, buckwheat, maize, millet, quinoa, rice, rye, …

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    Fiber is a rope or string used as a component …

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    A textile or cloth is a flexible woven material consisting …

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    The earliest ceramics were objects or figurines made from clay, …

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    Strategic metals

    A strategic metal is one that is essential for industry …

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    The term glass is often used to refer only to …

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    Slaves are people treated as property to be bought and …

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    Sugars, found in the tissues of most plants, are only …

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    Salt, also known as table salt, or rock salt, is …

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    Oils, gums, resins, and waxes

    Oil, which includes compound classes with otherwise unrelated chemical structures, …

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    Beer, wine, and spirits

    Alcoholic beverages, which contain ethanol, commonly known as alcohol, are …

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    Cosmetics (colloquially known as makeup or make-up) are care substances …

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    Lumber (also known as timber) is wood in any of …

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    Fuels, lubricants and sealants

    Energy, in the sense of a commodity, may refer to …

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    Poisons are substances that cause disturbances in organisms, usually by …

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    Naval stores

    Naval stores are all products derived from pine resin, which …

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    Industrial chemicals

    Commodity industrial chemicals include such compounds as natron, niter (saltpeter), …

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    The term "narcotic"", based on the Greek word for narcosis, …

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    Money is any item or verifiable record that is generally …

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    Manufactured goods

    Manufactured goods are goods that have been processed in any …

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    Rocks, sand, and gravel

    Rocks have been used by humans and other hominids for …

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    Aroma compounds

    An aroma compound, also known as an odorant, aroma, fragrance …

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    Stimulant drugs temporarily increase alertness and awareness.

    They usually have …

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    Natural rubber, also called India Rubber or caoutchouc, is an …

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    A spice is a dried seed, fruit, root, bark or …

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    Tobacco is a name for any plant of the genus …

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    Soft drinks

    A soft drink is a drink that usually contains carbonated …

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    News is information about current events. This may be provided …

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    Electric power

    Electric power is the rate, per unit time, at which …

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    Pharmaceutical drugs

    A pharmaceutical drug (also referred to as medicine, medication, or …

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    Telecommunications, which becomes a commodity with the invention of the …

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