Which university employed J.R.R. Tolkien as a professor from 1925 to 1959, with one chair change?

The University of Oxford employed J.R.R. Tolkien as a professor from 1925 to 1959, with a change of chair in 1945.

Tolkien became Rawlinson and Bosworth Professor of Anglo-Saxon in 1925, a post he held until 1945. He then moved to the Merton Professorship of English Language and Literature, remaining at Oxford until his retirement in 1959.

His academic life at Oxford was central to his development as a writer. He belonged to literary and scholarly circles there, including the informal Inklings, whose members discussed works in progress and read drafts aloud.

Tolkien had earlier worked at the University of Leeds, where he was professor of English language from 1924 to 1925. That brief post is sometimes mistaken for the start of his Oxford career, but Oxford was his long-term academic home.