Disputations: Scatterplots and other Visualizations
What of the disputations can we count and bring into relation with each other?
On August 2, 2020, we count 147 disputations by 107 students supervised by Daniel Sennert.
The years in which Sennert held the disputations saw different numbers of disputing students, which has many reasons: the plague disrupted studies from time to time; but Sennert prepared also series of topically interdependent disputations together with his students, often followed by more publications on the subject. A quick scatterplot shows the frequency of disputations by year:
We see four clusters, three spanning a two-year period, in which students held many more disputations than in other years: 1599/1600, the first years that Sennert supervised students, with 15 (1599) and 9 (1600) disputations; 1604/1605 with nine disputations each year; 1628 with seventeen disputations; and finally the 1630/1631 cluster with 1630 (9) and 1631 (15) disputations. After 1631 (when plague made students flee the university, and until his death in 1636, Sennert did not supervise many disputations anymore: only one in 1632, 1634 and 1635.
While most of Sennert's students did one disputation with him, twenty-three of them did between two and four disputations with him:
Johann Adam from Eperies in Hungary (today Prešov, Eastern Slovakia) was respondent in two disputations with Sennert in 1599, and might have been a respondent in a third disputation in 1614 (which could have also been a different Johann Adam, given the date).
Sveno Joannes Bartheus from Sweden was respondent in three disputations with Sennert in 1599 and 1600.
Martin Boecher from Austria did two in 1605 on the same subject, "De Differentiis Morborum", on differences of illnesses, part 1 and 2.
Johann Degenhard from Nördlingen (between Stuttgart and Nuremberg) did two disputations with Sennert in two different years with a distance of three years between them, 1605 and 1608. Both times, his disputations were part of a series, in 1605, on symptoms, and in 1608, on medical controversies.
Also Wilhelm Deichmann from Reineberg in Westfalia did two disputations with Sennert, one time on its own, the other as part of a series, both in 1631.
Michael Döring from Breslau (today Wroclaw, Poland) did three disputations with Daniel Sennert in 1607, two of which were part of a series. The pair in question bears the same title, but different dates, Feb 13 for the first, March 12 for the second.
Johann Georg Fabricius from Altdorf near Nuremberg did two disputations with Sennert in 1618, one on kidneys, the other on the illness phtisis.
Jeremias Girnt
Victorin Gregorii
Johann Heinrich Helmann
Christian Hinricking
Johann Nicolaus Holm
Johann Melchior Hupfauff
Caspar Keil
Joachim Köppe
Johannes Löselius
Christoph Maius
Christoph Meisner
Zacharias Polnerus from Breslau (Wroclaw, Poland): four disputations 1627, 1628, 1628, 1629.
Bartholomaeus Psichholtz: two disputations
Melchior Rohacz: three disputations
Wolfgang Schaller: two disputations
Conrad Schattenberg: four disputations, 1599, 1599, 1604, 1604
Johann Schlezer: two disputations
Daniel Schubert: two disputations
Sebastianus Schultesius: two disputations
Timotheus Ulrich: two disputations
Martinus Vorstius: three disputations
Martin Weise: two disputations
Daniel Winckler: two disputations