civics

9/17 1787

Sep 17, 1787

Signing of the U.S. Constitution in 1787 by 55 delegates in Philadelphia, Pennsylvania, after weeks of planning, negotiations, and compromise

9/11 2001

Sep 1, 2001

19 terrorists from the extremist group al-Qaeda hijacked four commercial airplanes and carried out suicide attacks against targets in the United States. The coordinated attacks killed 2,977 people and caused billions of dollars in damage.