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  2. Scientific theory - Wikipedia

    en.wikipedia.org/wiki/Scientific_theory

    A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world. The theory of biological evolution is more than "just a theory".

  3. AP World History: Modern - Wikipedia

    en.wikipedia.org/wiki/AP_World_History:_Modern

    Advanced Placement ( AP) World History: Modern (also known as AP World History, AP World, APWH, or WHAP) is a college-level course and examination offered to high school students in the United States through the College Board 's Advanced Placement program. AP World History: Modern was designed to help students develop a greater understanding of ...

  4. Scientific Revolution - Wikipedia

    en.wikipedia.org/wiki/Scientific_Revolution

    In the 20th century, Alexandre Koyré introduced the term "scientific revolution", centering his analysis on Galileo. The term was popularized by Herbert Butterfield in his Origins of Modern Science. Thomas Kuhn 's 1962 work The Structure of Scientific Revolutions emphasizes that different theoretical frameworks—such as Einstein 's theory of ...

  5. Scientific evidence - Wikipedia

    en.wikipedia.org/wiki/Scientific_evidence

    Scientific evidence. Scientific evidence is evidence that serves to either support or counter a scientific theory or hypothesis, [ 1] although scientists also use evidence in other ways, such as when applying theories to practical problems. [ 2] Such evidence is expected to be empirical evidence and interpretable in accordance with the ...

  6. Ramsey–Lewis method - Wikipedia

    en.wikipedia.org/wiki/Ramsey–Lewis_method

    The Ramsey–Lewis method is a method for defining terms found in theoretical frameworks (such as in scientific theories ), credited to mathematician Frank P. Ramsey [ 1] and philosopher David K. Lewis. [ 2] By using this method, a set of theoretical terms appearing in a theory can be defined implicitly by the assertions of the theory itself.

  7. History of science - Wikipedia

    en.wikipedia.org/wiki/History_of_science

    The history of science covers the development of science from ancient times to the present. It encompasses all three major branches of science: natural, social, and formal. [ 1] Protoscience, early sciences, and natural philosophies such as alchemy and astrology during the Bronze Age, Iron Age, classical antiquity, and the Middle Ages declined ...

  8. World-systems theory - Wikipedia

    en.wikipedia.org/wiki/World-systems_theory

    v. t. e. World-systems theory (also known as world-systems analysis or the world-systems perspective) [ 3] is a multidisciplinary approach to world history and social change which emphasizes the world-system (and not nation states) as the primary (but not exclusive) unit of social analysis. [ 3] World-systems theorists argue that their theory ...

  9. World history (field) - Wikipedia

    en.wikipedia.org/wiki/World_history_(field)

    World history or global history as a field of historical study examines history from a global perspective. It emerged centuries ago; leading practitioners have included Voltaire (1694–1778), Hegel (1770–1831), Karl Marx (1818–1883), Oswald Spengler (1880–1936), and Arnold J. Toynbee (1889–1975). The field became much more active (in ...