1991
Gulf War: U.S. sets up presence in Saudi Arabia.
1992
February: Civil war starts in Algeria.
Fall: Ahmed Ressam leaves Algeria for France.
Feb. 26: World Trade Center bombed.
1993
Feb. 20: Ressam arrives in Montreal.
Dec. 24: Air France plane hijacked in Algiers, Algeria. Plane is recovered in Marseille, France.
1994
March: Terrorist hunter Jean-Louis Bruguiere discovers Canadian cell.
1996
Spring: Osama bin Laden, expelled from Sudan, moves to Afghanistan.
1997
September: Taliban takes over Kabul.
1998
February: Bin Laden issues fatwa urging Muslims to kill Americans.
March: Ressam trains in Afghan terrorist camps.
1999
August: U.S. embassies bombed in Tanzania and Kenya. U.S. bombs al-Qaida camps in return.
2000
Dec. 14: Ressam arrested in Port Angeles.
2001
April 6: Ressam convicted on nine terrorism and bomb-related charges.
June 23: Ressam agrees to cooperate with federal authorities.
July 3: Ressam testifies in New York at the trial of Algerian Mokhtar Haouari.
Sept. 11: Terrorists slam planes into World Trade Center, Pentagon.
2003
Feb.: Reports surface that Ressam has stopped cooperating with federal authorities.
2005
April 20: Due to Ressam souring on cooperation, prosecutors propose a 35-year sentence while the defense seeks 12 ½ years.
April 27: U.S. District Judge John Coughenour delays the sentencing of Ressam to allow more time for Ressam to decide whether he will once again cooperate with investigators for a lesser sentence.
July 25: According to a filing by Ressam's attorneys, he will offer no further assistance to the U.S. in prosecuting other terrorism cases.
July 27: Judge Coughenour sentences Ressam to 22 years in prison.
Compiled by Seattle Times researcher Miyoko Wolf.