Suchergebnisse
Suchergebnisse:
Vor 10 Stunden · 1971 – The four-day Attica Prison riot begins, eventually resulting in 39 dead, most killed by state troopers retaking the prison. 1972 – In Kentucky 's Mammoth Cave National Park , a Cave Research Foundation exploration and mapping team discovers a link between the Mammoth and Flint Ridge cave systems, making it the longest known cave passageway in the world.
