Cicero (typography)

A cicero /ˈsɪsəroʊ/ is a unit of measure used in typography in Italy, France and other continental European countries, first used by Pannartz and Sweynheim in 1468 for the edition of Cicero's Epistles, Ad Familiares. The font size thus acquired the name cicero. It is  1⁄6 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. There are about 1.063 picas to a cicero; a pica is 4.23333333 mm and a cicero is 4.5 mm.

Cicero (typography)

A cicero /ˈsɪsəroʊ/ is a unit of measure used in typography in Italy, France and other continental European countries, first used by Pannartz and Sweynheim in 1468 for the edition of Cicero's Epistles, Ad Familiares. The font size thus acquired the name cicero. It is  1⁄6 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. There are about 1.063 picas to a cicero; a pica is 4.23333333 mm and a cicero is 4.5 mm.