One thing that I know was that the terrorists came from the Middle East. They did not like The U.S because they did not believe that we should have all of this freedom. So they high jacked 4 planes. The first plane crashed into the north tower, the second hit the south tower, the third hit the pentagon, and the fourth crashed in a field in Pennsylvania. The people in flight 93( the plane that crashed in Pennsylvania) fought back because there flight was heading for either the White House or the Capital building. That’s really all that I know. Hope this works :)