Concept
Commonplace books (or commonplaces) are a way to compile knowledge, usually by writing information into books. They have been kept from antiquity, and were kept particularly during the Renaissance and in the nineteenth century. Such books are similar to scrapbooks filled with items of many kinds: sententiae (often with the compiler's responses), notes, proverbs, adages, aphorisms, maxims, quotes, letters, poems, tables of weights and measures, prayers, legal formulas, and recipes. Entries are most often organized under systematic subject headings and differ functionally from journals or diaries, which are chronological and introspective. "Commonplace" is a translation of the Latin term locus communis (from Greek tópos koinós, see literary topos) which means "a general or common topic", such as a statement of proverbial wisdom. In this original sense, commonplace books were collections of such sayings, such as John Milton's example. 'Commonplace book' is at times used with an expansive sense, referring to collections by an individual in one volume which have a common theme (e.g. ethics) or explores several themes. The term overlaps with aspects of the terms 'anthology' or 'mixed-manuscript' in these productions but most properly refers to a collection of sayings or excerpts by an individual, often collected under thematic headings. Commonplaces are a separate genre of writing from diaries or travelogues. Commonplaces are used by readers, writers, students, and scholars as an aid for remembering useful concepts or facts; sometimes they were required of young women as evidence of their mastery of social roles and as demonstrations of the correctness of their upbringing. They became significant in Early Modern Europe. As a genre, commonplace books were generally private collections of information, but as the amount of information grew following the invention of movable type and printing became less expensive, some were published for the general public.
