A cicero is a unit of measure used in

typography Typography is the art and technique of Typesetting, arranging type to make written language legibility, legible, readability, readable and beauty, appealing when displayed. The arrangement of type involves selecting typefaces, Point (typogra ...

Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

and other continental

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

an countries, first used by Pannartz and Sweynheim in 1468 for the edition of

Cicero Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, orator, writer and Academic skeptic, who tried to uphold optimate principles during the political crises tha ...

's ''

Epistulae ad Familiares ''Epistulae ad Familiares'' (''Letters to Friends'') is a collection of letters between Ancient Rome, Roman politician and orator Cicero, Marcus Tullius Cicero and various public and private figures. The letters in this collection, together wit ...

''. The font size thus acquired the name ''cicero''. It is of the historical French inch, and is divided into 12 points, known in English as French points or Didot points. The unit of the cicero is similar to an English pica, although the French inch was slightly larger than the English

inch The inch (symbol: in or prime (symbol), ) is a Units of measurement, unit of length in the imperial units, British Imperial and the United States customary units, United States customary System of measurement, systems of measurement. It is eq ...

. There are about 1.066 picas to a cicero; a pica is 4.23333333 mm and a cicero is 4.51165812456 mm. Cicero (and the points derived from cicero) was used in the early days of typography in continental Europe. In modern times, all computers use pica (and the points derived from pica) as font size measurement – alongside millimeters in countries using the

metric system The metric system is a system of measurement that standardization, standardizes a set of base units and a nomenclature for describing relatively large and small quantities via decimal-based multiplicative unit prefixes. Though the rules gover ...

– for

line length In typography, line length is the width of a block of typeset text, usually measured in units of length like inches or points or in characters per line (in which case it is a measure). A block of text or paragraph has a maximum line length tha ...

and

paper size Paper size refers to Technical standard, standardized dimensions for sheets of paper used globally in stationery, printing, and technical drawing. Most countries adhere to the ISO 216 standard, which includes the widely recognized A series ( ...

measurement.

References

Typography Units of length {{typ-stub