The attack on the World Trade Center took place in:

Correct answer: 2001. The World Trade Center attacks took place on 11 September 2001.

Background: The attacks on the World Trade Center in New York happened on 11 September 2001, when hijacked planes struck the Twin Towers.

• 2000: 2000 is the wrong year.
• 2004: 2004 is the wrong year.
• 2007: 2007 is the wrong year.

Did you know? They led to the US-led “War on Terror” and the invasion of Afghanistan in October 2001.

Memory trick: 9/11 = September 11, 2001.