At which university did C.S. Lewis teach for most of his academic career?

C.S. Lewis taught for most of his academic career at the University of Oxford.

Lewis held academic posts at Oxford from 1925 until 1954. He was a fellow and tutor in English at Magdalen College, Oxford, and became known there as a medieval and Renaissance literature scholar as well as a writer of fiction and Christian apologetics.

In 1954, Lewis left Oxford for the University of Cambridge, where he became the first holder of the Chair of Medieval and Renaissance English. He continued teaching at Cambridge until his death in 1963. Because both universities were important in his career, biographies sometimes blur the length of his Oxford and Cambridge periods.

Oxford also provided the setting for his friendship with J.R.R. Tolkien and for meetings of the literary group known as the Inklings.