This document provides an overview of the NCAA March Madness tournament. It discusses how the tournament originated in 1939 under Harold Olsen and now includes 68 teams. It explains how teams are selected and provides results from recent tournaments, noting that Kentucky won in 2012 and Louisville won in 2013. It also lists teams with the most championships (UCLA), appearances (Kentucky), and wins (John Wooden). John Wooden is highlighted for his success coaching UCLA and players like Kareem Abdul-Jabbar.