Theodor Franz Eduard Kaluza (1885-1954). Born in
Ratibor, Germany (now Raciborz, Poland). Studied mathematics at the
University of Königsberg (now Kaliningrad, Russia) and became a
lecturer there in 1910. In 1929 he received a professorship at the
University of Kiel, and in 1935 was made full professor at the
University of Göttingen. He wrote only a handful of mathematical
papers and a textbook on “Higher mathematics for the practician”
(cf. [423]).