On September 11, 2001—a clear, sunny, late summer day—al Qaeda terrorists aboard three hijacked passenger planes carried out coordinated suicide attacks against the World Trade Center in New York City and the Pentagon in Washington, D.C., killing everyone on board the planes and nearly 3,000 people on the ground. A fourth plane crashed into a field near Shanksville, Pennsylvania, killing all on board, after passengers and crew attempted to wrest control from the hijackers. Below is a chronology of the events of 9/11 as they unfolded. All times are Eastern Daylight Time (EDT).
• 7:59 am – American Airlines Flight 11, a Boeing 767 with 92 people aboard, takes off from Boston’s Logan International Airport en route to Los Angeles.