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  2. National Council of Educational Research and Training

    en.wikipedia.org/wiki/National_Council_of...

    [26] [27] Again in 2022, a new controversy started when both CBSE and NCERT removed topics regarding Islamic Empires in the class 12 history textbook and chapters like “Challenges to Democracy” in the class 10 political science subject and many others, saying it is necessary to reduce syllabus to reduce examination pressure on students by ...

  3. Historical source - Wikipedia

    en.wikipedia.org/wiki/Historical_source

    A tertiary source is an index or textual consolidation of already published primary and secondary sources [6] that does not provide additional interpretations or analysis of the sources. [7] [8] Some tertiary sources can be used as an aid to find key (seminal) sources, key terms, general common knowledge [9] and established mainstream science on a

  4. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  5. NCERT textbook controversies - Wikipedia

    en.wikipedia.org/wiki/NCERT_textbook_controversies

    Similarly from the Class X History textbook, chapters on 'The Nationalist Movement in Indo-China', 'Work, Life and Leisure - Cities in the Contemporary World', and ‘Novels, Society and History’ had been deleted. NCERT's director Hrushikesh Senapaty highlighted that students must have time to engage outdoor.

  6. List of important publications in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_important...

    Zeitschrift für Chemie 12, 405–406 (1869) Online version; Description and Importance: In this paper the periodic table was introduced. [3]: 438 Notice that the table in the above link is the original one. Since then the table structure was slightly changed and new elements were added to it.

  7. Textbook - Wikipedia

    en.wikipedia.org/wiki/Textbook

    The history of textbooks dates back to ancient civilizations. For example, Ancient Greeks wrote educational texts. The modern textbook has its roots in the mass production made possible by the printing press. Johannes Gutenberg himself may have printed editions of Ars Minor, a schoolbook on Latin grammar by Aelius Donatus. Early textbooks were ...

  8. Wikipedia:Identifying reliable sources (history) - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Identifying...

    The primary source used is the one used from a scholarly source, or a very close analogue; The primary source is attributed, allowing readers to understand the origin of the quote; Finally, the use of primary sources should be considered in terms of the policy regarding the use of images. There should not be too many, and they are not required.

  9. Historiography of India - Wikipedia

    en.wikipedia.org/wiki/Historiography_of_India

    The historiography of India refers to the studies, sources, critical methods and interpretations used by scholars to develop a history of India.. In recent decades there have been four main schools of historiography in how historians study India: Cambridge, Nationalist, Marxist, and subaltern.

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