The attacks of September 11 (usually written as 9/11) is a series of attacks happened in 2001 in U.S.A. There were four coordinated terrorist actions under the lead of Islamic terrorist group al-Qaeda. Those terraces resulted in 2.996 people’s deaths, and also 6.000 were heavily injured. The damage to the infrastructure and property was valued to be approximately $10 billion.
The effects were huge. Consider the only fact, that this topic is still discussed, after 16 years! So, let’s go one by one.
- The destruction of the World Trade Center and nearby infrastructure caused serious damage to the economy of Lower Manhattan and had a significant effect on global markets, which resulted in the closing of Wall Street until September 17
- the civilian airspace in the U.S. and Canada were closed until September 13.
- Many closings, evacuations, and cancellations followed, out of respect or fear of further attacks
- Cleanup of the World Trade Center site was completed in May 2002 only
- The Pentagon repair took a year.
- Numerous memorials, including the National September 11 Memorial & Museum in New York City
- Various international reactions and military operations against the ‘muslim world.’
I’m not really sure of the causes, for there were a lot of rumors and not much of the facts. It is also suspicious that al-Qaeda firstly denied the involvement in the operations, but then after three years, Osama bin Laden claimed responsibility for attacks.
There is a good paper on the topic; it might be helpful. I like it for not taking sides
The investigation of the tracks causes is led till now. Each year we have more and more theories about what was the real reason, and who’s fault was it.
As for now, the most famous theories say, that the causes lay under Osama bin Laden's declaration of holy war against the United States and the fatwa signed by bin Laden in 1998. It was all about calling for killing Americans. There was a famous ‘Letter to America’ in November 2002 from bin Laden, where he explained the motives of those attacks, including