On this day in 1954, Oxford England, 25-year-old medical student Roger Bannister cracks track and field’s most notorious barrier: the four-minute mile. Bannister, who was running for the Amateur Athletic Association against his alma mater, Oxford University, won the mile race with a time of 3 minutes and 59.4 seconds. For years, so many athletes had tried and failed to run a mile in less than four minutes that people made it out to be a physical impossibility. The world record for a mile was 4 minutes and 1.3 seconds, set by Gunder Hagg of Sweden in 1945. Despite, or perhaps because of, the psychological mystique surrounding the four-minute barrier, several runners in the early 1950s dedicated themselves to being the first to cross into the three-minute zone.