Bartholomäus Keckermann (c. 1572 – 25 August (or July) 1609) was a German writer,Calvinist theologian and philosopher. He is known for hisAnalytic Method. As a writer onrhetoric, he is compared toGerhard Johann Vossius, and considered influential in Northern Europe and England.^[1]

Keckermann was born inGdańsk (Danzig), in theKingdom of Poland, to Calvinists Georg and Gertrude Keckermann^[2] and attended the local Academic Gymnasium before moving on to theUniversity of Wittenberg (May 1590) and theUniversity of Leipzig (spring 1592). However following the death of PrinceChristian I in 1591, Keckermann participated in the migration of Calvinist academics to theUniversity of Heidelberg in October 1592. He received hisMaster of Arts degree on 27 February 1595. On 4 February^{[dubious –discuss]} he was appointed Professor of Hebrew there. In 1601 he returned to his home town to teach as rector (1602–1608) at theGymnasium of Danzig. His numerous works were published towards the end of his short life, or (most of them) posthumously.

Keckermann died in Danzig. He is described inMelchior Adam's works.

Publications:^[3]

• Praecognitorum logicorum tractatus tres (Hanau, 1599).
• Systema grammaticae Hebraeae, sive, sanctae linguae exactior methodus (Hanau, ca. 1600?).
• Systema logicae, tribus libris adornatum, pleniore praeceptorum methodo, et commentariis scriptis ad praeceptorum illustrationem (Hanau, 1600).
• Systema logicae, compendiosa methodo (Hanau, 1601).
• Systema S. S. Theologiae, tribus libris adornatum. Methodum ac dispositione[m] operis tabula praefixa adumbrat. Cum indice rerum & verborum locupletissimo (Hanau, 1602).
• Systema logicae minus. Succincto praeceptorum compendio tribus libris adornatum ... ut servire possit gymnasio Dantiscano ... (Gdansk, 1605).
• Gymnasium logicum (London, 1606).
• Systema disciplinae politicae, publicis praelectionibus anno MDCVI propositum in gymnasio Dantiscano (Hanau, 1607).
• Systema ethicae, tribus libris adornatum [et] publicis praelectionibus traditum in gymnasio Dantiscano (Hanau and London, 1607).
• Systema rhetoricae, in quo artis praecepta plene et methodice traduntur (Hanau, 1608).
• Apparatus practicus sive idea methodica et plena totius philosophiae practicae (Hanau, 1609).
• Scientiae metaphysicae compendiosum systema (Hanau, 1609).
• Systematis logici plenioris (Hanau, 1609).
• Systema physicum, septem libris adornatum (Hanau, 1610).
• Systema astronomiae compendiosum (Hanau, 1611).
• Systema geographicum duobus libris adornatum (Hanau, 1612).
• Systema systematum clarissimi viri Dr. Bartholomaei Keckermanni, omnia hujus autoris scripta philosophica uno volumine comprehensa lectori exhibens, 2 vols. (Hanau, 1613).

• Concise Routledge Encyclopedia of Philosophy. Routledge; 2000.ISBN 0-415-22364-4
• Joseph S. FreedmanThe Career and Writings of Bartholomäus Keckermann (d.1609) Proceedings of the American Philosophical Society 141 (3): 305-364 (1997); reprinted in: J. S. FreedmanPhilosophy and the Arts in Central Europe, 1500-1700. Aldershot, Ashgate, 1999.
• Ralf Kern.Wissenschaftliche Instrumente in ihrer Zeit. Vol. 1:Vom Astrolab zum mathematischen Besteck. Cologne, 2010. p. 338.

• Works by Bartholomäus Keckermann atPost-Reformation Digital Library
• BiografieArchived 2007-09-27 at theWayback Machine
• Erich Wenneker (1992). "Keckermann, Bartholomäus". In Bautz, Friedrich Wilhelm (ed.).Biographisch-Bibliographisches Kirchenlexikon (BBKL) (in German). Vol. 3. Herzberg: Bautz. cols. 1280–1283.ISBN 3-88309-035-2.
• Bartholomäus Keckermann in theGerman National Library catalogue
• Online Galleries, History of Science Collections, University of Oklahoma Libraries High resolution images of works by and/or portraits of Bartholomaus Keckermann in .jpg and .tiff format.

• 1570s births
• 1609 deaths
• People from Royal Prussia
• Writers from Gdańsk
• Academic staff of the Collegium Sapientiae (Heidelberg)
• 17th-century Calvinist and Reformed theologians
• German Calvinist and Reformed theologians
• 17th-century German Protestant theologians
• German male non-fiction writers
• 16th-century German Protestant theologians
• 16th-century German male writers
• 17th-century German male writers
• 16th-century German philosophers
• Rhetoric theorists

• All accuracy disputes
• Articles with disputed statements from August 2022
• Webarchive template wayback links
• CS1 German-language sources (de)