The Invention That Changed March Madness
![](https://media.wnyc.org/i/800/0/c/85/1/109732622.jpg)
A detail of a referee's whistle during the game between the Texas A&M Aggies and the Kansas Jayhawks on March 2, 2011 at Allen Fieldhouse in Lawrence, Kansas.
( Jamie Squire / Getty )
( Jamie Squire / Getty )