Diels–Kranz

Diels–Kranz
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Name	Diels–Kranz
Author	Hermann Diels; Walther Kranz
Language	German
Subject	Ancient Greek philosophy; fragments
Publisher	Weidmannsche Buchhandlung
Pub date	1903 (Diels); revision 1951 (Kranz)

Diels–Kranz is the conventional name for the critical edition and arrangement of the pre-Socratic Greek philosophers' testimonia and fragments compiled by Hermann Diels and revised by Walther Kranz. The work became the standard reference for scholars working on Heraclitus, Parmenides, Empedocles, Anaximander, and other early Greek thinkers, and it is frequently cited in scholarship on Plato, Aristotle, and Hellenistic schools such as the Stoicism and Epicureanism. The edition is central to philological studies conducted at institutions like the University of Berlin, the University of Bonn, and the University of Oxford.

Overview

Diels–Kranz organizes fragmentary remains of archaic and classical Greek philosophers by combining testimonia from ancient authors such as Plutarch, Diogenes Laërtius, Simplicius of Cilicia, Porphyry, and Sextus Empiricus with direct quotations preserved in texts by Herodotus, Thucydides, Xenophon, Sophocles, and Euripides. The apparatus presents Greek text alongside German commentary influenced by the philologies of Friedrich Nietzsche, Wilhelm von Humboldt, and the textual criticism practised in the tradition of Richard Bentley and Karl Lachmann. Diels–Kranz has informed editions produced by presses such as Cambridge University Press, Oxford University Press, and Brill.

History and development

The original compilation was published by Hermann Diels in the early 20th century and drew on manuscript traditions preserved in libraries like the Bibliotheca Marciana and the Vatican Library. During the interwar and postwar periods Walther Kranz produced a major revision that aligned with contemporary work by scholars at the British Museum, the Institut français d'archéologie orientale, and the École française d'Athènes. Debates about Diels–Kranz intersected with research conducted by figures such as G.E.R. Lloyd, Eduard Zeller, Martin West, Johannes Ilberg, Hans von Arnim, and Leo Strauss, and were shaped by archaeological discoveries related to sites like Delphi, Miletus, and Eleusis.

Structure and notation

Diels–Kranz arranges authors in a numbered sequence and divides material into categories labeled with the sigla A (testimonia) and B (fragments), employing a numbering convention that became ubiquitous in citations across journals such as Classical Philology, Journal of Hellenic Studies, and Rheinisches Museum für Philologie. The edition’s typographical conventions and critical signs owe a debt to editorial practice at the Oxford Classical Texts series and to emendatory strategies used by Franz Clemens, August Boeckh, and editors of the Loeb Classical Library. Scholarly apparatus includes parallel citations to ancient sources like Cicero, Pliny the Elder, Stobaeus, and Aelian, and cross-references to modern commentaries by Wilhelm Kapff, Eduard Schwartz, and Ulrich von Wilamowitz-Moellendorff.

Editions and volumes

The work was issued in multiple editions and reprints; the Diels original and the Diels–Kranz revision are found across library collections at the British Library, the Bibliothèque nationale de France, and the Library of Congress. Later bibliographical treatments and translations into English, French, and Italian were prepared by scholars associated with Harvard University Press, Cornell University Press, and the University of California Press, and are cited alongside related collections such as the Loeb Classical Library series and the Teubner editions. Supplementary fragment collections by Martin L. West and compilations in the Oxford Studies in Ancient Philosophy series often reference Diels–Kranz volume and page numbers.

Reception and influence

Diels–Kranz has been both praised and critiqued in the scholarly literature. Positive assessments come from historians of philosophy such as Jonathan Barnes, G.E.L. Owen, and M.I. Finley, while methodological criticisms have been advanced by Kurt von Fritz, G.W. Bowersock, and Denis O’Brien. The edition influenced interpretive programs pursued by schools at Princeton University, Harvard University, and the École Normale Supérieure and shaped readings of influential texts like Parmenides (poem), On Nature (Empedocles), and the fragments ascribed to Anaxagoras. It has also prompted reconsideration of source-critical methods used by editors of Plato's dialogues, Aristotle's Physics, and commentaries on Parmenides.

Usage in classical scholarship

Researchers cite Diels–Kranz when discussing philological issues, historical reconstructions, and philosophical arguments in articles published in periodicals such as Phronesis, Classical Quarterly, and Mnemosyne. Comparative studies involving texts by Homer, Hesiod, Aeschylus, Sophocles, and Euripides often draw on fragmentary evidence catalogued by Diels–Kranz, and interdisciplinary work at centers like the Institute for Advanced Study and the Max Planck Institute for the History of Science uses its numbering for cross-referencing. Modern projects in digital classics and databases run by institutions such as the Perseus Project and the Thesaurus Linguae Graecae also map their fragment catalogues to Diels–Kranz identifiers to aid researchers working on ancient Greek philosophy and related literatures.

Category:Classical philology