In which year did the tragedy known as "9/11" happen?

in 1911
in 1991
in 2001
in 2011
The September 11 attacks (also referred to as 9/11) were a series of four coordinated terrorist attacks by the Islamic terrorist group al-Qaeda on the United States on the morning of Tuesday, September 11, 2001. The attacks killed 2,996 people, injured over 6,000 others, and caused at least $10 billion in infrastructure and property damage.
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reach: rather globaldisastershistoryNew YorkTerrorismthe United StatesUnited States

Answers by country

in 1911
in 1991
in 2001
in 2011
answers
flagDenmark
0%
0%
100%
0%
14
flagAustralia
3%
0%
93%
3%
30
flagthe United States
1%
2%
85%
9%
327
flagCanada
7%
3%
84%
3%
26
flagFrance
11%
5%
83%
0%
18
flagGermany
5%
3%
81%
7%
506
flagAustria
7%
2%
81%
5%
88
flagthe Netherlands
0%
0%
81%
18%
16
flagSpain
9%
0%
81%
0%
11
flagSwitzerland
4%
7%
80%
7%
41
flagRepublic of Ireland
5%
0%
80%
15%
20
flagGreece
0%
0%
76%
23%
13
flagthe United Kingdom
4%
2%
75%
13%
174
flagPoland
9%
6%
72%
11%
3979
flagUkraine
20%
0%
70%
10%
10
flagItaly
27%
0%
44%
22%
18
flagRussia
15%
5%
42%
15%
19
flagIndia
13%
24%
37%
21%
37
flagthe Philippines
30%
10%
20%
30%
10