David Christiani (25 December 1610 – 13 February 1688) was a German

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

, philosopher and

Lutheran Lutheranism is one of the largest branches of Protestantism, identifying primarily with the theology of Martin Luther, the 16th-century German monk and Protestant Reformers, reformer whose efforts to reform the theology and practice of the Cathol ...

theologian Theology is the systematic study of the nature of the divine and, more broadly, of religious belief. It is taught as an academic discipline, typically in universities and seminaries. It occupies itself with the unique content of analyzing the ...

. He became an ordinary professor of mathematics at the

University of Marburg The Philipps University of Marburg (german: Philipps-Universität Marburg) was founded in 1527 by Philip I, Landgrave of Hesse, which makes it one of Germany's oldest universities and the oldest still operating Protestant university in the wor ...

in 1643, ordinary professor of theology at the

University of Giessen University of Giessen, official name Justus Liebig University Giessen (german: Justus-Liebig-Universität Gießen), is a large public research university in Giessen, Hesse, Germany. It is named after its most famous faculty member, Justus von ...

in 1681, and rector of the University of Giessen in 1686.

References

1610 births 1688 deaths People from Gryfice People from Pomerania 17th-century German mathematicians German philosophers German Lutheran theologians 17th-century German Protestant theologians 17th-century philosophers German male non-fiction writers 17th-century German writers 17th-century German male writers {{Germany-mathematician-stub