United Airlines flight 93 was a domestic passenger flight that was hijacked on September 11, 2001, as part of a coordinated terrorist attack on the United States by al-Qaeda. The plane crashed into a field near Shanksville, Pennsylvania.| Encyclopedia Britannica
"The Editors of Encyclopaedia Britannica" is identified as a contributor. What does that mean? You will notice that many of the encyclopedic articles on this site are attributed in full or in part to the Editors of Encyclopaedia Britannica. The vast majority of articles attributed solely to the editors have been written, reviewed, or revised by external advisers and experts, and the lack of formal acknowledgment of their contributions was an editorial policy dating to the 1970s. In the absenc...| Encyclopedia Britannica
September 11 attacks, series of airline hijackings and suicide attacks committed in 2001 by 19 militants associated with Islamic extremist group al-Qaeda against targets in the United States, the deadliest terrorist attacks on U.S. soil in U.S. history. Over 3,000 people died in the attacks and rescue efforts.| Encyclopedia Britannica
