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Idea

Cataloguing (the Pinakes)

文献编目学(《书目》)

When there are too many books to find any of them, "how to find" becomes an invention in itself.

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The Pinakes ("Tables," c. 3rd c. BCE), compiled by the Library of Alexandria scholar Callimachus, which listed the collection's authors and works by category with brief biographies and opening lines, in 120 books. It is regarded as the world's earliest library catalogue and the beginning of bibliography—when a collection grows too large to find anything in, retrieval itself becomes a technology.

Date
c. 245–240 BCE
Place
Ptolemaic Egypt, Alexandria
Civilisation
Greco-Roman
Fields
Information & Communication, Natural Philosophy & Method

A big book is a big evil.

—— Callimachus, fr. 465 Pfeiffer (μέγα βιβλίον μέγα κακόν)
A papyrus fragment of Callimachus's Lock of Berenice (1st-century BCE copy; Florence, Biblioteca Medicea Laurenziana, PSI 1092). The Pinakes he compiled are lost; what survives is his own poetry, copied and catalogued by others.
A papyrus fragment of Callimachus's Lock of Berenice (1st-century BCE copy; Florence, Biblioteca Medicea Laurenziana, PSI 1092). The Pinakes he compiled are lost; what survives is his own poetry, copied and catalogued by others.Callimachus, public domain, via Wikimedia Commons source

History

The Library of Alexandria held books by the hundred thousand, and with them came a problem no one had seriously faced: with so many books, how does one know what exists, or find it? The poet-scholar Callimachus (c. 305–240 BCE) answered with the Pinakes ("Tables"), 120 books that listed the collection's authors and works, arranged by category (poetry, rhetoric, law, medicine, history…), each author given a short life, each work recorded with its opening line and number of lines for identification. This is generally regarded as the world's first library catalogue and the beginning of bibliography. It produced no new knowledge, but made existing knowledge retrievable—and retrievability is the precondition for knowledge being used at all.

Why it matters

Cataloguing is easily overlooked but has strong credentials in the history of technology: it reminds us that organizing information is itself a technology, no less important than producing it. It was the Library that gave rise to cataloguing, since the sheer mass of the collection forced a method of retrieval. Callimachus's line "a big book is a big evil" was a jibe at bloated epic, but from his mouth it turns ironic: the man who compiled a 120-book catalogue complains that others' books are too long. Behind the complaint lies a real problem still unsolved—the more information there is, the costlier it is to find what one needs. From the Pinakes to the card catalogue to the search engine, humanity has been answering the same question.

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