Which Oxford discussion group did C.S. Lewis chair from 1942?

C.S. Lewis chaired the Oxford Socratic Club from 1942.

The Socratic Club was founded in 1942 by Stella Aldwinckle as a forum for discussion of Christianity and competing philosophical positions. Meetings encouraged speakers and attendees to examine arguments rather than simply affirm shared beliefs. Lewis became its best-known chair and led its discussions for many years.

The club is distinct from the Inklings, Lewis’s informal literary circle, which included J.R.R. Tolkien and Charles Williams. It is also different from the Oxford Union, a major student debating society. The Socratic Club focused especially on intellectual questions surrounding Christian belief and unbelief.