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168 killed 800 wounded
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Clinton bars federal funding for any research on human cloning
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two teenagers murder 13 students and teachers at Columbine High School
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George Bush is inaugurated
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U.S. forces capture saddam hussein
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The social networking site Facebook is launched
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George Bush is inaugurated to a second-term
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Obama is elected as 44th presdient
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oil rig exlplodes in gulf of mexico
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last flight for space shuttle program