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

Description:

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

Added to timeline:

1990s Timeline Part 2

ByJulie Berichon

8 May 2019

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Date:

apr 20, 1999

Now

~ 26 years ago

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