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  2. Roman abacus - Wikipedia

    en.wikipedia.org/wiki/Roman_abacus

    The reconstruction of a Roman hand abacus in the Cabinet, [7] supports this. The replica Roman hand abacus at, [8] shown alone here, [9] plus the description of a Roman abacus on page 23 of Die Zahlzeichen und das elementare Rechnen der Griechen und Römer und des christlichen provides further evidence of such devices. [3]

  3. List of proofreader's marks - Wikipedia

    en.wikipedia.org/wiki/List_of_proofreader's_marks

    Roman: Put in Roman (non-italic) font sc: Small caps: Put text in small caps: set: Insert question mark: sp: Spell out: Used to indicate that an abbreviation should be spelled out, such as in its first use stet: Let it stand: Indicates that proofreading marks should be ignored and the copy unchanged tr: transpose: Transpose the two words ...

  4. Liber Abaci - Wikipedia

    en.wikipedia.org/wiki/Liber_Abaci

    The book describes methods of doing calculations without aid of an abacus, and as Ore (1948) confirms, for centuries after its publication the algorismists (followers of the style of calculation demonstrated in Liber Abaci) remained in conflict with the abacists (traditionalists who continued to use the abacus in conjunction with Roman numerals).

  5. Latin alphabet - Wikipedia

    en.wikipedia.org/wiki/Latin_alphabet

    Old Roman cursive script, also called majuscule cursive and capitalis cursive, was the everyday form of handwriting used for writing letters, by merchants writing business accounts, by schoolchildren learning the Latin alphabet, and even emperors issuing commands.

  6. 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 ...

  7. These are the pedophile symbols you need to know to protect ...

    www.aol.com/news/2016-04-26-these-are-the...

    A FBI document obtained by Wikileaks details the symbols and logos used by pedophiles to identify sexual preferences. According to the document members of pedophilic organizations use of ...

  8. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    An abacus (pl. abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu–Arabic numeral system. [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects). In their ...

  9. Abacus (architecture) - Wikipedia

    en.wikipedia.org/wiki/Abacus_(architecture)

    In classical architecture, the shape of the abacus and its edge profile varies in the different classical orders. In the Greek Doric order, the abacus is a plain square slab without mouldings, supported on an echinus. [2] In the Roman and Renaissance Doric orders, it is crowned by a moulding (known as "crown moulding").