Incunable

An incunable, or sometimes incunabulum (plural incunables or incunabula, respectively) is a book, pamphlet, or broadside (such as the Almanach cracoviense ad annum 1474) that was printed—not handwritten—before the year 1501 in Europe. "Incunable" is the anglicised singular form of "incunabula", Latin for "swaddling clothes" or "cradle" which can refer to "the earliest stages or first traces in the development of anything." A former term for "incunable" is "fifteener," referring to the fifteenth century.

The first recorded use of incunabula as a printing term is in a Latin pamphlet by Bernhard von Mallinckrodt, De ortu et progressu artis typographicae ("Of the rise and progress of the typographic art", Cologne, 1639), which includes the phrase prima typographicae incunabula, "the first infancy of printing", a term to which he arbitrarily set an end, 1500, which still stands as a convention. The term came to denote the printed books themselves in the late seventeenth century.

The end date for identifying a printed book as an incunable is convenient but was chosen arbitrarily. It does not reflect any notable developments in the printing process around the year 1500, and many books printed for a number of years after 1500 continued to be visually indistinguishable from incunables. The term "post-incunable" is sometimes used to refer to books printed after 1500 up to another arbitrary end date such as 1520 or 1540.

As of 2008, there are between 28,000 and 30,000 distinct incunable editions known to be extant, while the number of surviving copies in Germany alone is estimated at around 125,000.