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Christmann, Jacob

1. Dates
Born: Johannesberg, Reingau, Germany, November 1554
Died: Heidelberg, Germany, 16 June 1613
Dateinfo: Dates Certain
Lifespan: 59
2. Father
Occupation: No Information
No information on financial status.
3. Nationality
Birth: German
Career: German
Death: German
4. Education
Schooling: Heidelberg
He studied oriental subjects at Heidelberg. He must have earned a B.A.
5. Religion
Affiliation: Calvinist
6. Scientific Disciplines
Primary: Astronomy
Subordinate: Mathematics
7. Means of Support
Primary: Academic Position
Secondary: Schoolmaster
Christmann became a teacher at Heidelberg in 1580, but had to leave shortly thereafter because he would not subscribe to the Lutheran concordat-formulary; travelled for some time.
ca. 1582 taught in a Reformed school in Neustadt, Pfalz.
Returned to Heidelberg; 18 June 1584, appointed professor of Hebrew at Heidelberg.
From 1591 on taught Aristotelian logic.
1602, made rector of university.
1608, Frederick IV appointed him professor of Arabic.
8. Patronage
Types: Unknown, Court Official
One Konrad Marius, of whom I know nothing, recognized Christmann's ability when Christmann was a young man, and paid for his education.
Frederick IV appointed him professor in 1608.
9. Technological Involvement
Type: Instruments
Christmann developed an instrument which involved a telescope to take the altitude of stars.
10. Scientific Societies
Memberships: None
Informal: corresponded with Kepler.
He inherited a large library form Valentine Otho.
  1. Melchior Adam, Vitae Germanorum Philosophorum, (Heidelberg, 1615), pp. 518-522.
  2. M. Cantor in Algemeine Deutsche Biographie.
  3. Robert McKeon, "Le debuts de l'astronomie de precision," Physis, 13 (1971), 225-88; 14 (1972), 221-42; especially 14, 222.
  4. Verdonk (DSB) lists other works on his science and oriental scholarship.
Compiled by:
Richard S. Westfall
Department of History and Philosophy of Science
Indiana University

Note: the creators of the Galileo Project and this catalogue cannot answer email on geneological questions.

1995 Al Van Helden
Last updated
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