What were the events that have become known as 9/11?

On September 11, 2001, militants with the Islamic extremist group hijacked four airplanes and  s uicide attacked against targets in the United States. Two of the planes flown into the twin towers, a third plane hit the Pentagon just outside Washington, D.C., and the fourth plane crashed in a field in Shanksville, Pennsylvania.

Explanation:

number   5 i know this because savannah was the first capital and i took the test and all you have to do is look up a map of georgia savannah.