Roger Bannister, a British middle-distance track and field athlete, was the first person to break the four-minute mile barrier on May 6, 1954. Bannister's time was 3:59.4, a record that lasted just 46 days. Since then, many more have achieved the feat and the one-mile record now stands at 3:43:13. So, what changed since Bannister's accomplishment? Why was it seemingly impossible for a man to run a mile in under four minutes before that day in 1954? The answers to these questions served as a large part of what motivated Tech. Sgt. Nathaniel Carter to not only do more in his own life, but to urge others to do more as well.