The 4 Minute Mile
When Roger Bannister finished under four minutes for a mile for the first time in 1954, the feat was considered nothing short of super-human. It was indeed a feat. He and his contemporaries were limited by the technology of the period; tracks were made of cinder, running shoes were made of leather, spike implements were literal nails driven through the sole of a sneaker. On top of that, Bannister was a medical school student at…