 Even as he was thoroughly revising his presentation of the foundational portion of his system, Fichte was simultaneously engaged in elaborating the various subdivisions or systematic branches of the same. As was his custom, he did this first in his private lectures and then in published texts based upon the same. The first such extension was into the realm of philosophy of law and social philosophy, which resulted in the publication Foundations of Natural Right in accordance with the Principles of the Wissenschaftslehre (published in two volumes in 1796 and 1797). The second extension was into the realm of moral philosophy, which resulted in the publication of the System of Ethics in accordance with the Principles of the Wissenschaftslehre (1798). Fichte then planned to extend his system into the realm of philosophy of religion. Indeed, he announced lectures on this topic for the Spring Semester of 1799, but before he could commence these lectures, his career at Jena had come to an abrupt and unhappy conclusion in the wake of the so-called “Atheism Controversy” of 1798/99.