Answer:
Step-by-step explanation:
In Iran, an Islamic revolution overthrows the Shah (1979).
Osama bin Laden forms al-Qaeda (1988).
The US Congress passes the Patriot Act (October 2001).
September 11 attacks take place (2001).
The United States invades Iraq (March 2003).
Saddam Hussein is executed by an Iraqi military court (December 2006).
A group of Islamic militants called ISIS emerges (April 2013).