Which Sport had an Event of men's 400 m hurdles?
CREATE TABLE table_name_21 (sport VARCHAR, event VARCHAR)
SELECT sport FROM table_name_21 WHERE event = "men's 400 m hurdles"
### Context: CREATE TABLE table_name_21 (sport VARCHAR, event VARCHAR) ### Question: Which Sport had an Event of men's 400 m hurdles? ### Answer: SELECT sport FROM table_name_21 WHERE event = "men's 400 m hurdles"