Italic font

In typography, italic type is a cursive font based on a stylized form of calligraphic handwriting. Owing to the influence from calligraphy, italics normally slant slightly to the right. Italics are a way to emphasise key points in a printed text, or when quoting a speaker a way to show which words they stressed. One manual of English usage described italics as "the print equivalent of underlining".

The name comes from the fact that calligraphy-inspired typefaces were first designed in Italy, to replace documents traditionally written in a handwriting style called chancery hand. Aldus Manutius and Ludovico Arrighi (both between the 15th and 16th centuries) were the main type designers involved in this process at the time. Different glyph shapes from roman type are usually used – another influence from calligraphy – and upper-case letters may have swashes, flourishes inspired by ornate calligraphy. An alternative is oblique type, in which the type is slanted but the letterforms do not change shape: this less elaborate approach is used by many sans-serif typefaces.

Italic type was first used by Aldus Manutius and his press in Venice in 1500. Manutius used italic not for emphasis but for the text of small, easily carried editions of popular books (often poetry), replicating the style of handwritten manuscripts of the period. The choice of using italic type, rather than the roman type in general use at the time, was apparently made to suggest informality in editions designed for leisure reading. Manutius' italic type, cut and (according to his later claims) conceived by his employee, punchcutter Francesco Griffo, replicated handwriting of the period following from the style of Niccolò de' Niccoli, possibly even Manutius' own.

...
Wikipedia