Better training methods (Arthur Lydiard in New Zealand and later Finland comes to mind). Also the fascination with the mile that both preceded and more prominently followed Sir Roger Bannister's breaking the 4-minute barrier in the mile.
AP Statistics teacher
Basketball game manager
Cross-country and Track Coach
D'Evelyn Jr./Sr. High School
________________________________ From: Dennis Roberts [firstname.lastname@example.org] Sent: Tuesday, April 24, 2012 9:52 To: AP Statistics Subject: [ap-stat] Mile race data
Here are some interesting record holding mile race data from 1865 to 1999. There's a gap/drop around the 1950 spot ... any thoughts about this?