On September 11, 2001, 19 militants associated with the Islamic extremist group al Qaeda hijacked four airplanes and carried out suicide attacks against targets in the United States. Two of the planes were flown into the twin towers of the World Trade Center in New York City, a third plane hit the Pentagon in Arlington, Virginia, just outside Washington, D.C., and the fourth plane crashed in a field in Shanksville, Pennsylvania.
Almost 3,000 people were killed during the 9/11 terrorist attacks, which triggered major U.S. initiatives to combat terrorism and defined the presidency of George W. Bush (History Channel, https://www.history.com/topics/21st-century/9-11-attacks).
The 9/11 Memorial and Museum honors those killed in the attacks, and also the terrorist attacks of February 26, 1993. It also recognizes those who survived and those who risked their lives to save others.
The live stream of the 9/11 Memorial and Museum commemoration ceremony – marking the 21st anniversary of the attacks – begins at 8:40 a.m. on Sunday, September 11.
Learn more about the 9/11 Memorial & Museum here: