Numbers that we never should not forget

The twin towers

Year the World Trade Centre was built: 1970
Number of companies housed in the WTC: 430
Number working in World Trade Centre on average working day prior to 11 September: 50,000
Average number of daily visitors: 140,000
Number killed in attack on New York, in the Twin Towers and in aircraft that crashed into them: 2,823

Distance, in miles, from which the burning towers were visible: 20

Maximum heat of fires, in degrees fahrenheit, at World Trade Center site: 2,300

Number of days underground fires at World Trade Centre continued to burn: 69
Number of days that workers dug up debris at Ground Zero, searching for body parts: 230
Number of body parts collected: 19,500
Number of bodies discovered intact: 291
Number of victims identified by New York medical examiner: 1,102

Number of death certificates issued without a body at request of victims' families: 1,616
Number of people still classified as missing from the World Trade Centre that day: 105
Number of people who died when American Airlines flight 11 from Boston, Massachusetts, to Los Angeles, California, crashed into the north tower of the World Trade Center: 92

Number of people who died when United Airlines flight 93 from Boston, Massachusetts, to Los Angeles, California, crashed into the south tower of the World Trade Center: 65

Number of people who died when United Airlines flight 93 from Newark, New Jersey, to San Francisco, California, crashed in rural southwest Pennsylvania: 45

Number of people who died when American Airlines flight 77, from Washington to Los Angeles, crashed into the Pentagon: 64
Number of peole killed in the Pentagon: 125

Number of survivors rescued from Ground Zero: 0