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The World Trade Center in New York City collapsed on September 11, 2001, as result of the al-Qaeda attacks. Two commercial airliners hijacked by al-Qaeda terrorists were deliberately flown into the Twin Towers of the complex, resulting in a total progressive collapse that killed almost 3,000 people.
- September 11, 2001; 22 years ago
- c. 6,000 - 25,000
- 2,763
Apr 16, 2024 · Key Takeaways. The World Trade Center towers collapsed from both the initial impact of the airplanes and the intense fires that followed. The initial damage to the buildings' external and core columns dislodged fireproofing material, which allowed for further damage.
- Clint Pumphrey
Jun 21, 2011 · Civilians bolt in the opposite direction as firefighters rush towards the Twin Towers of the New York City's World Trade Center after a plane hit the building on September 11, 2001. Suicide...
- 5 min
Aug 18, 2021 · The collapse of the World Trade Center (WTC) buildings following the terrorist attacks of Sept. 11, 2001, was one of the worst-ever building disasters in recorded history — killing 2,749 people. More than 400 emergency responders were among those killed, the largest loss of life for this group in a single incident.
Oct 9, 2001 · October 9, 2001. 15 min read. When the Twin Towers Fell. One month after the attack on the World Trade Center, M.I.T. structural engineers offer their take on how and why the towers came...
Aug 25, 2021 · Overview. The collapse of the WTC buildings following the terrorist attacks on September 11, 2001, was one of the worst building disasters in US history, killing 2,749 people, including 400 emergency responders. NIST responded to calls from Congress and the public to carry out a federal investigation of why the buildings collapsed, the ...
The second took place on September 11, 2001, when members of the terrorist group al-Qaeda flew two hijacked planes into the buildings, leading to their collapse. Primary Sources. These primary sources include speeches, executive orders, legislative acts and debates, and government reports. History of the Port Authority of NY & NJ.
