Conversation so far:
What was the Jena period for Friedrich Wilhelm Joseph Schelling?
After two years tutoring, in October 1798, at the age of 23, Friedrich Wilhelm Joseph Schelling was called to University of Jena as an extraordinary (i.e., unpaid) professor of philosophy.
What happened while Friedrich Wilhelm Joseph Schelling was teaching at the University of Jena?
Friedrich Wilhelm Joseph Schelling's time at Jena, from 1798–1803, put him at the center of the intellectual ferment of Romanticism.
Did Friedrich Wilhelm Joseph Schelling do anything else during his time at the University of Jena besides being put at the center of the intellectual ferment of Romanticism?
In Jena, Friedrich Wilhelm Joseph Schelling was on good terms with Johann Gottlieb Fichte at first, but their different conceptions, particularly about nature, led to increasing divergence in their thought.
Did anything happen because of the conflict between Friedrich Wilhelm Joseph Schelling and Johann Gottlieb Fichte at the University of Jena?
Friedrich Wilhelm Joseph Schelling, who was becoming the acknowledged leader of the Romantic school, had begun to reject Johann Gottlieb Fichte's thought as cold and abstract.

Question: How long did he work at the university?
Self-contained rewrite: How long did Friedrich Wilhelm Joseph Schelling work at the University of Jena?