<p>It was a blustery late spring day in 1954 and a young Oxford medical student flung himself over the line in a mile race. There was an agonising pause, and then the timekeeper announced the record: three minutes, fifty-nine point four seconds. But no one heard anything after that first word - 'three'. One of the most iconic barriers of sport had been broken, and Roger Bannister had become the first man to run a mile in under four minutes. To th...