On February 5, 1850, the Austrian emperor Franz Josef appointed C.G. Jacob Jacobi to the position of full professor at the University of Vienna. Thanks to the efforts of Alexander von Humboldt, however, the world-famous Prussian mathematician remained in Berlin and continued in his position as a salaried member of the Academy of Sciences.This paper describes the history of Jacobi’s appointment in Vienna and his ultimate rejection of it.

“I'ai entendu parler de la bataille académique de Waterloo. Rien ne pouvoit être plus imprudent que l'attaque de Mr. Encke… On dit cependant que notre grand et illustre géomètre [Jacobi] a usé de sa grosse Artillerie, mais aussi a-t-il été attaqué imprudemment le pretmier.” (From a letter of A.v. Humboldt to Dirichlet in 1850.) The astronomer Encke reported on the quantity of papers of the mathematicians in the “Abhandlungen der Berliner Akademie”, on August 1st, 1850. Encke attacked the mathematician Jacobi, (...) especially. In this paper are published extracts from his report for the first time. (shrink)