There have been other serious incidents from concerts to football stadiums where too many people in one place has led to multiple fatalities. In addition, there have been tragedies at places like the Arianna Grande concert in Manchester and The Bataclan Theatre in Paris, when terrorist attacks have killed many people. These incidents are rare, but they can happen.
Whether you're attending a festival, concert, or sporting event, there are things that you can do to increase your chances of surviving should something should go wrong.