Conversation so far:
Where did Rex Harrison grow up?
Rex Harrison was born at Derry House in Huyton, Lancashire. He was educated at Liverpool College.
What year was Rex Harrison born?
Sir Reginald Carey Harrison was born 5 March 1908.
When did Rex Harrison's stage career start?
Rex Harrison first appeared on the stage in 1924 in Liverpool.

Question: what was his first performance
Self-contained rewrite: what was Rex Harrison's first performance