From the invention of
movable type until the invention of
hot metal typesetting, printed text was, for the most part, created by selecting sorts from a
type case and assembling them line by line into a form used to print a page. When the form was no longer needed all of the type had to be sorted back into the correct slots in the type case in a very time-consuming process called "distributing". This sorting process led to the individual pieces being called sorts. It is often claimed to be the root of expressions such as "out of sorts" and "wrong sort", although this connection is disputed. During the hot metal typesetting era, printing equipment used matrices to cast type as needed during the typesetting process. The popular
Linotype cast entire lines of text at once rather than individual sorts, while the less popular competitor
Monotype still cast the sorts individually. Later, when
phototypesetting replaced hot metal typesetting, sorts disappeared entirely from the mainstream printing process. ==See also==