Conversation so far:
who has run the mile under 4 minutes
Helped by two pacemakers, Roger Bannister clocked 3 minutes, 59.4 seconds over four laps at Oxford’s Iffley Road track on May 6, 1954, to break the 4-minute mile.
How old was Roger Bannister at the time
Roger Bannister was 25 when he ran the 3:59:4 mile
What major was Roger Bannister pursuing in Oxford
While Roger Bannister was training on the track, he was attending school to become a doctor. At the end of 1954, he retired from sports to pursue his medical career.

Question: Did any one else break the record since
Self-contained rewrite: Did any one else run the mile under 4 minutes breaking Roger Bannister's record