In Typography, the mean line is the line that determines where non-ascending lowercase letters terminate in a typeface. The distance between the baseline and the mean line is called the x-height. Illustration of various typeface metrics: ascent, descent, body size and x-height. ... This article or section is in need of attention from an expert on the subject. ... The ascenders are the parts of the characters that lie above the midline, highlighted in red. ... Minuscule, or lower case, is the smaller form (case) of letters (in the Roman alphabet: a, b, c, ...). Originally alphabets were written entirely in majuscule (capital) letters which were spaced between well-defined upper and lower bounds. ... A Specimen of typeset fonts and languages, by William Caslon, letter founder; from the 1728 Cyclopaedia. ... For the origin and evolution of fonts, see History of western typography. ... In typography and penmanship, the baseline is the line upon which most letters sit and under which descenders extend. ... In typography, the x-height or corpus size refers to the height of the lowercase letter x in any font, which is usually the same for a, c, e, m, n, o, r, s, u, v, w, and z. ...

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