University of Bern electrodynamics Charles-Ferdinand University Austrian Austro-Hungarian Empire Zürich Alfred Kleiner radiation Bern University of Zurich
Einstein's sabbatical as a civil servant approached its end in 1908, when he secured a junior teaching position at the University of Bern. In 1909, a lecture on relativistic electrodynamics that he gave at the University of Zurich, much admired by Alfred Kleiner, led to Zürich's luring him away from Bern with a newly created associate professorship. Promotion to a full professorship followed in April 1911, when he accepted a chair at the German Charles-Ferdinand University in Prague, a move which required him to become an Austrian citizen of the Austro-Hungarian Empire. His brief time in Prague saw him producing eleven research papers, five of them on radiation mathematics and on the quantum theory of solids.
