Karaiskakis Stadium disaster
1981 CE.
Shown on the map at 37.946°, 23.664°.
The Karaiskakis Stadium disaster, also called the Gate 7 Tragedy, was an incident that occurred on 8 February 1981 at the Karaiskakis Stadium in Neo Faliro, Piraeus, Greece, after the conclusion of a football match between Olympiacos and AEK Athens. It is the worst football tragedy in Greece's history.
Text from the Wikipedia article Karaiskakis Stadium disaster, licensed CC BY-SA 4.0.