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*factobot*proposed to add the alias*Roman numerals: Original term title*. 2009-04-24 10:26*factobot*added the fact*link:Minor history of the rules of Roman Numerals and an Arabic to Roman Numeral Converter*. 2009-01-27 22:40*factobot*added the fact*link:Web Based Converter - Decimal to Roman Numerals*. 2009-01-27 22:40*factobot*added the fact*link:Simple Roman Numeral Converter in C*. 2009-01-27 22:40*factobot*added the fact*link:Romance in Numbers*. 2009-01-27 22:40*factobot*added the fact*link:Roman Numeral Conversion Exercises*. 2009-01-27 22:40*factobot*added the fact*link:Online Converter*. 2009-01-27 22:40*factobot*added the fact*link:FAQ #1 Why do clocks with Roman numerals use "IIII" instead of "IV"?:*. 2009-01-27 22:40*factobot*added the fact*link:Conversion program (with javascript source code)*. 2009-01-27 22:40*factobot*added the fact*link:Conversion algorithm and demonstration program (with java source code)*. 2009-01-27 22:40*factobot*added the fact*picture:Roman Numerals, 16th century*. 2009-01-27 22:40*factobot*added the fact*picture:Bow of Clipper ship Cutty Sark*. 2009-01-27 22:40*factobot*added the fact*picture:Roman numbers on stern of Cutty Sark, Greenwich*. 2009-01-27 22:40*factobot*added the fact*picture:The Shepherd gate clock with Roman numbers up to XXIII (and 0), in Greenwich*. 2009-01-27 22:40*factobot*added the fact*picture:An inscription on Admiralty Arch, London*. 2009-01-27 22:40*factobot*added the fact*picture:as}}). Note the S indicating its value*. 2009-01-27 22:40*factobot*added the fact*picture:as}}). Note the four dots •••• indicating its value*. 2009-01-27 22:40*factobot*added the fact*picture:Entrance to section LII of the Colosseum, with numerals still visible*. 2009-01-27 22:40*factobot*added the fact*There are several mnemonics that can be useful in remembering the Roman numeral system*. 2008-11-13 11:23*factobot*added the fact*After the Renaissance, the Roman system could also be used to write chronograms*. 2008-11-13 11:23*factobot*added the fact*Some "modern" Roman numerals, post-Victorian era, are shown below: An accurate way to write large numbers in Roman numerals is to handle first the thousands, then hundreds, then tens, then units*. 2008-11-13 11:23*factobot*added the fact*In the Middle Ages, Latin writers used a horizontal line above a particular numeral to represent one thousand times that numeral, and additional vertical lines on both sides of the numeral to denote one hundred times the number, as in these examples*. 2008-11-13 11:23*factobot*added the fact*remained in common use until about the 14th century, when they were replaced by Arabic numerals (thought to have been introduced to Europe from al-Andalus, by way of Arab traders and arithmetic treatises, around the 11th century)*. 2008-11-13 11:23*factobot*added the fact*In seventeenth-century Europe, using Roman numerals for the year of publication for books was standard; there were many other places it was used as well*. 2008-11-13 11:23*factobot*added the fact*Rules regarding Roman numerals often state that a symbol representing 10n may not precede any symbol larger than 10n+1*. 2008-11-13 11:23*factobot*added the fact*The notation of Roman numerals has varied through the centuries*. 2008-11-13 11:23*factobot*added the fact*Though the Romans used a decimal system for whole numbers, reflecting how they counted in Latin, they used a duodecimal system for fractions, because the divisibility of twelve makes it easier to handle the common fractions of 1/3 and 1/4 than does a*. 2008-11-13 11:23*factobot*added the fact*In general, the number zero did not have its own Roman numeral, but a primitive form (nulla) was known by medieval computists (responsible for calculating the date of Easter)*. 2008-11-13 11:23*factobot*added the fact*Although the Roman numerals are now written with letters of the Roman alphabet, they were originally independent symbols*. 2008-11-13 11:23*factobot*added the fact*See #Modern usage below*. 2008-11-13 11:23*factobot*added the fact*are commonly used in numbered lists (in outline format), clock faces, pages preceding the main body of a book, chord triads in music analysis, the numbering of movie publication dates, successive political leaders or children with identical names, an*. 2008-11-13 11:23*factobot*added the fact*It is based on certain letters which are given values as numerals*. 2008-11-13 11:23*factobot*added the fact*The system used in classical antiquity was slightly modified in the Middle Ages to produce a system used today*. 2008-11-13 11:23*factobot*added the fact*are a numeral system originating in ancient Rome, adapted from Etruscan numerals*. 2008-11-13 11:23*factobot*created the term*Roman numerals*. 2008-11-13 11:23

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