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  2. Tally marks - Wikipedia

    en.wikipedia.org/wiki/Tally_marks

    The first or fifth mark in each group may be written at an angle to the others for easier distinction. In the fourth example, the fifth stroke "closes out" a group of five, forming a "herringbone". In the fifth row the fifth mark crosses diagonally, forming a "five-bar gate". Tally marks are typically clustered in groups of five for legibility.

  3. History of ancient numeral systems - Wikipedia

    en.wikipedia.org/wiki/History_of_ancient_numeral...

    In the Etruscan system, the symbol 1 was a single vertical mark, the symbol 10 was two perpendicularly crossed tally marks, and the symbol 100 was three crossed tally marks (similar in form to a modern asterisk *); while 5 (an inverted V shape) and 50 (an inverted V split by a single vertical mark) were perhaps derived from the lower halves of ...

  4. Unary numeral system - Wikipedia

    en.wikipedia.org/wiki/Unary_numeral_system

    [5] The use of tally marks in counting is an application of the unary numeral system. For example, using the tally mark | (𝍷), the number 3 is represented as |||. In East Asian cultures, the number 3 is represented as 三, a character drawn with three strokes. [6] (One and two are represented similarly.)

  5. Vote counting - Wikipedia

    en.wikipedia.org/wiki/Vote_counting

    Using incorrect precinct tally sheets to tally ballots resulted in incorrect precinct level results." Some of these tallying errors were also reported in Indiana and Texas elections. Errors were 3% to 27% for various candidates in a 2016 Indiana race, because the tally sheet labels misled officials into over-counting groups of 5 tally marks ...

  6. Tally stick - Wikipedia

    en.wikipedia.org/wiki/Tally_stick

    Tally stick. Medieval English split tally stick (front and reverse view). The stick is notched and inscribed to record a debt owed to the rural dean of Preston Candover, Hampshire, of a tithe of 20 d each on 32 sheep, amounting to a total sum of £2 13s. 4d. A tally stick (or simply tally[1]) was an ancient memory aid device used to record and ...

  7. Roman numerals - Wikipedia

    en.wikipedia.org/wiki/Roman_numerals

    The hours of operation signs are tables composed of two columns where the left column is the day of the week in Roman numerals and the right column is a range of hours of operation from starting time to closing time. In the example case (left), the business opens from 10 AM to 7 PM on weekdays, 10 AM to 5 PM on Saturdays and is closed on ...

  8. Prehistoric counting - Wikipedia

    en.wikipedia.org/wiki/Prehistoric_counting

    v. t. e. Counting in prehistory was first assisted by using body parts, primarily the fingers. This is reflected in the etymology of certain number names, such as in the names of ten and hundred in the Proto-Indo-European numerals, both containing the root * dḱ also seen in the word for "finger" (Latin digitus, cognate to English toe).

  9. Ishango bone - Wikipedia

    en.wikipedia.org/wiki/Ishango_bone

    Ishango bone. The Ishango bone, discovered at the "Fisherman Settlement" of Ishango in the Democratic Republic of the Congo, is a bone tool and possible mathematical device that dates to the Upper Paleolithic era. [1] The curved bone is dark brown in color, about 10 centimeters in length, and features a sharp piece of quartz affixed to one end ...