On September 11, 2001, four commercial airplanes were hijacked by al-Qaeda terrorists and deliberately crashed into buildings, killing nearly 3,000 people. Two planes crashed into the twin towers of the World Trade Center in New York City, a third plane hit the Pentagon just outside Washington, D.C., and the fourth plane crashed into a field in Pennsylvania. The attacks triggered major U.S. initiatives to combat terrorism and defined the presidency of George W. Bush.

1. September 11, 2001 An interactive presentation by: Krystal Olson ED 205

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