LESSONS FROM DISASTER

15 crowd disasters.
15 lessons that save lives.

Every crowd tragedy was preventable — and each one taught the world something. Walk the path, learn what went wrong, and understand the principle behind it. Free, and it takes minutes.

The one number that decides everything: people per m²

Crowd crushes kill by compressive asphyxia — not trampling. It comes down to density.

1–2
Free movement
3–4
Comfortable
5
Danger begins
6–7
Can't move
9–10
Asphyxiation
0 / 15 lessons0%
United Kingdom · 1943
Bethnal Green
173 lives lost
Scotland · 1971
Ibrox
66 lives lost
United States · 1979
The Who, Cincinnati
11 lives lost
Belgium · 1985
Heysel
39 lives lost
United Kingdom · 1989
Hillsborough
97 lives lost
Denmark · 2000
Roskilde
9 lives lost
Japan · 2001
Akashi
11 lives lost
South Africa · 2001
Ellis Park
43 lives lost
United States · 2003
The Station
100 lives lost
Germany · 2010
Love Parade
21 lives lost
Cambodia · 2010
Koh Pich Bridge
347 lives lost
Saudi Arabia · 2015
Mina (Hajj)
700–2,400+ lives lost
United States · 2021
Astroworld
10 lives lost
South Korea · 2022
Itaewon
159 lives lost
India · 2024
Hathras
121 lives lost

Ready to prove what you know?

Turn these lessons into a verifiable Crowd Management Certificate — recognised for Martyn’s Law.

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