S. Freedman Philosophy 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. External links Biografie 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 writers 16th-century German male writers 17th-century German writers 17th-century German male writers