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  2. Ordinal numeral - Wikipedia

    en.wikipedia.org/wiki/Ordinal_numeral

    The spatial and chronological ordinal numbers corresponding to cardinals from 13 to 19 are the number followed by the suffix -th, as "sixteenth". For multiples of ten, the same principle applies, with terminal -y changed to -ieth , as "sixtieth".

  3. Timeline of numerals and arithmetic - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_numerals_and...

    second half of 1st millennium BC — The Lo Shu Square, the unique normal magic square of order three, was discovered in China. c. 400 BC — Jaina mathematicians in India write the “Surya Prajinapti”, a mathematical text which classifies all numbers into three sets: enumerable, innumerable and infinite.

  4. Köchel catalogue - Wikipedia

    en.wikipedia.org/wiki/Köchel_catalogue

    Its numbers reflect the ongoing task of compiling the chronology of Mozart's works, and provide a shorthand reference to the compositions. For example, according to Köchel's counting, Requiem in D minor is the 626th piece Mozart composed, thus is designated K. 626. Köchel's original catalogue (1862) has been revised several times.

  5. Catalogues of classical compositions - Wikipedia

    en.wikipedia.org/wiki/Catalogues_of_classical...

    In a small number of cases, different symbols apply to different parts of the catalogue. Among the most famous examples of this are: the BWV numbers allocated to Johann Sebastian Bach's works in the Bach-Werke-Verzeichnis (Bach Works List) developed by Wolfgang Schmieder. They are also sometimes referred to by their S numbers (after Schmieder)

  6. Opus number - Wikipedia

    en.wikipedia.org/wiki/Opus_number

    In music, the opus number is the "work number" that is assigned to a musical composition, or to a set of compositions, to indicate the chronological order of the composer's publication of that work. Opus numbers are used to distinguish among compositions with similar titles; the word is abbreviated as "Op." for a single work, or "Opp." when ...

  7. List of time periods - Wikipedia

    en.wikipedia.org/wiki/List_of_time_periods

    Early modern period – The chronological limits of this period are open to debate. It emerges from the Late Middle Ages (c. 1500), demarcated by historians as beginning with the fall of Constantinople in 1453, in forms such as the Italian Renaissance in the West, the Ming dynasty in the East, and the rise of the Aztecs in the New World.

  8. Alphabetic numeral system - Wikipedia

    en.wikipedia.org/wiki/Alphabetic_numeral_system

    An alphabetic numeral system employs the letters of a script in the specific order of the alphabet in order to express numerals. In Greek, letters are assigned to respective numbers in the following sets: 1 through 9, 10 through 90, 100 through 900, and so on. Decimal places are represented by a single symbol.

  9. Timeline - Wikipedia

    en.wikipedia.org/wiki/Timeline

    A timeline is a list of events displayed in chronological order. [1] It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events. Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a ...