Columbine and Deepwater Horizon: Why April 20 Stands Out in History

Columbine and Deepwater Horizon: Why April 20 Stands Out in History

The most significant global event linked to April 20 is the 1999 Columbine High School shooting in Colorado, United States. Two students carried out a planned attack at their school, killing 13 people and then themselves, and injuring many others. At the time, it shocked communities far beyond the U.S. because it showed how quickly violence could spread in a familiar, everyday place. It still matters today because it changed how schools think ab…