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20 apr 1999 anni - April 20: Most Deadliest School Shooting in US

Descrizione:

Columbine HS students killed 15 & wounded 23 ppl -> stricter safety procedures, but school shootings freq. is alarming.

Aggiunto al nastro di tempo:

1990s Timeline Part 2

ByJulie Berichon

8 mag 2019

0

0

309

Data:

20 apr 1999 anni

Adesso

~ 26 years ago

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