On May 6, 1954, on an Oxford University track, Roger Bannister made history by successfully running a mile in under four minutes.
His time, 3:59.4, is one of the biggest records to ever be broken in all of sports, and at the time was thought to be an impossible, even dangerous undertaking. John Bryant, author of the new book "Against the Clock: Beating the Four Minute Mile,” joins us to relive that day sixty years ago and what it meant for the running community around the world.