During World War II, 173 people died in a crowd crush on a stair entering a London subway air-raid shelter during the bombing of the city.

The Who performed on December 4, 1979, one night after 11 fans were killed in a crowd crush at Riverfront Coliseum in Cincinnati.

August 31 - A crowd crush on the Al-Aaimmah bridge in Baghdad kills several hundred civilians.

Wal-Mart argued that a crowd crush was not a known hazard at the time.

Eleven fans are killed during a crowd crush for unreserved seats before The Who rock concert at the Riverfront Coliseum in Cincinnati, Ohio.

This is referred to as crowd crush.

At the individual level, warning signs of a crowd crush include density of more than four people per square meter, at which each person is being touched on four sides.

To avoid or escape from a crowd crush, one is advised to move sideways, particularly between swells.

January 26 - A crowd crush occurs during the a set by Limp Bizkit at the Sydney Big Day Out music festival.

This week in the magazine, John Seabrook writes about fatal crowd crushes.