On September 11, 2001, almost 3,000 people lost their lives during the attacks at the Twin Towers, Pentagon and aboard United Airlines Flight 93.
At 8:46 a.m. ET, American Airlines Flight 11 hit the north tower of the World Trade Center in New York City.
At 9:03 a.m. ET, United Airlines Flight 175 hit the south tower of the World Trade Center in New York City.
At 9:37 a.m. ET, American Airlines Flight 77 hit the Pentagon Building in Washington.
At 10:03 a.m. ET, United Airlines Flight 93 crashed in a field near Shanksville, Pennsylvania.