What is the 3-4 Defense?

The 3-4 defense is a formation that relies on having more speed and mobility to stop the offense. It utilizes 3 big guys up front, and has 4 faster guys behind them.

What are the origins of the 3-4 Defense?

The 3-4 defense was created at the University of Oklahoma in the 1940's by a man named Bud Wilkinson.

Are there any famous teams who used this defense?

Yes, the 1972 Miami Dolphins used this defense under coach Don Shula and they won every single game of that season, including the Super Bowl.