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  2. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008.

  3. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    This is an accepted version of this page This is the latest accepted revision, reviewed on 13 November 2024. Portable Document Format, a digital file format For other uses, see PDF (disambiguation). Portable Document Format Adobe PDF icon Filename extension.pdf Internet media type application/pdf, application/x-pdf application/x-bzpdf application/x-gzpdf Type code PDF (including a single ...

  4. Musical notation - Wikipedia

    en.wikipedia.org/wiki/Musical_notation

    Braille music is a complete, well developed, and internationally accepted musical notation system that has symbols and notational conventions quite independent of print music notation. It is linear in nature, similar to a printed language and different from the two-dimensional nature of standard printed music notation.

  5. List of writing systems - Wikipedia

    en.wikipedia.org/wiki/List_of_writing_systems

    Writing systems are used to record human language, and may be classified according to certain common features. The usual name of the script is given first; the name of the languages in which the script is written follows (in brackets), particularly in the case where the language name differs from the script name.

  6. List of creators of writing systems - Wikipedia

    en.wikipedia.org/wiki/List_of_creators_of...

    W. John (or John W.) Weilgart - Austrian-born American psychoanalyst and philosopher; creator of the philosophical language aUI and its writing system. John Wilkins - English academic. Invented the so-called 'real character' as a writing system for a proposed Philosophical language in 1668. John Willis - English, invented a system of shorthand ...

  7. History of music publishing - Wikipedia

    en.wikipedia.org/wiki/History_of_music_publishing

    A page from the Mellon Chansonnier (c.1470), prepared for the wedding of Catherine of Aragon. Music publishing is the business of creating, producing and distributing printed musical scores, parts, and books in various types of music notation, while ensuring that the composer, songwriter and other creators receive credit and royalties or other payment (where applicable).

  8. Writing system - Wikipedia

    en.wikipedia.org/wiki/Writing_system

    Throughout history, each writing system invented without prior knowledge of writing gradually evolved from a system of proto-writing that included a small number of ideographs, which were not fully capable of encoding spoken language, and lacked the ability to express a broad range of ideas.

  9. List of Italian inventions and discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_Italian_inventions...

    European academics attending the universities were expected to have already mastered the seven liberal arts, spanning from grammar to music and astronomy. The University of Bologna (founded around 1088 AD) is, by these standards, the first university of the world and, as its motto goes, 'Nourishing Mother of the Studies'.