World Trade Center (1973–2001) - Wikipedia
Timeline of the September 11 Attacks | Britannica
Aerial view of New York City, with the World Trade Center Twin Towers prominent | Library of Congress
1993 World Trade Center Bombing Fast Facts | CNN
Bombers attacked Twin Towers years before 9/11: Heartbreaking photos
September 11 attacks - Wikipedia
9/11 Terror Attacks: 15 facts that you may not know | World News - Times of India
Timeline: The September 11 terrorist attacks | Miller Center
Remembering 9/11 | Atlanta History Center
World Trade Center Bombing 1993 — FBI
Remembering the 9/11 Terrorist Attacks, 20 Years Later
As the twin towers burned on September 11, hundreds of people became trapped in narrow stairwells - ABC News
20 years since 9/11: Timeline defining 2 decades of 'war on terror' - Times of India
The 9/11 Attacks – History of New York City
9/11 Timeline - Date, Videos, World Trade Center Attacks
How the 9/11 terror attacks unfolded | Telegraph Time Tunnel - YouTube
7 Facts About the 1993 World Trade Center Bombing | HISTORY
Remembering the September 11th terrorist attacks – New York Daily News
September 11 attacks | History, Summary, Location, Timeline, Casualties, & Facts | Britannica
He Survived the Trade Center Bombing. 'I Always Knew They'd Be Back.' - The New York Times
9/11 attack: 9/11 attack: How many people died in Al Qaeda attack on World Trade Center's Twin Towers - The Economic Times
Photos of 9/11 and its aftermath to mark the 20-year anniversary
How many people died in 9/11? | The Independent
