What's a pivotal event in the history of the United States?

I have to write a 1000-1200 word essay on this using 2 sources from books, 2 sources from the internet, 2 sources from magazines, and 1 other source. Whatever I choose is going to have to be interesting otherwise I'll be bored to tears, so I'll appreciate any help or suggestions....





These are what I have so far:


Hiroshima


Kennedy's asassanation


September 11, 2001


Columbine


Brown Vs. Board of Education





Like I said, your help will be greatly appreciated....

What's a pivotal event in the history of the United States?
The Civil War is a pretty big one. So is the War of Independence. There's been tons of stuff written about both of those events, and the first one is very interesting.

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