October 2007 -- Suicide attacks on a rally of former Pakistani Prime Minister Benazir Bhutto killed 140 people on Oct. 19, 2007. Bhutto, leader of the Pakistan People's Party, survived the attack but died in an explosion in her election rally on Dec. 27.
August 2007 -- Coordinated suicide bomb attacks in northern Iraq killed at least 500 people on Aug. 14, 2007.
April 2007 -- A series of bombings and attacks across Iraq killed more than 230 people on April 18, 2007, and nearly 190 of them died in Baghdad.
November 2006 -- A series of apparently coordinated bombings killed at least 200 people in Sadr city in eastern Iraq on Nov. 23, 2006.
July 2006 -- A series of powerful bombs ripped through crowded commuter trains in Mumbai on July 11, 2006, India, killing at least 190 people.
September 2005 -- Four suicide car bombings rocked the Iraqi capital of Baghdad on Sept. 14, 2005, killing at least 114 people.
July 2005 -- Fifty-six people were killed and more than 700 others injured by exlosions in London underground trains and a bus on July 7 and July 21, 2005.
February 2005 -- Some 125 people were killed in a suicide car bomb attack in the Iraqi city of Hilla on Feb. 28, 2005.
September 2004 -- At least 333 people died at a school in the town of Beslan of North Ossetia in Russia on Sept. 1, 2004, when more than 1,000 people were taken hostage by terrorists.
August 2004 -- On Aug. 24, 2004, two passenger planes on domestic flights were simultaneously blown up mid-air, killing a total of 90 passengers and crew. Both planes took off from Moscow's Domodedovo airport.
March 2004 -- At least 198 people were killed on March 11, 2004 in commuter train bombings in Madrid, Spain.
March 2004 -- On March 2, 2004, a total of 271 people were killed in a series of terrorist explosions in two mosques of Iraqi Shi'ite Muslims in Baghdad and Karbala.
August 2003 -- Two car bombs detonated outside the Imam Ali Mosque in Najaf, Iraq killed over 100 people on Aug. 29, 2003, including Ayatollah Mohammed Baqir al-Hakim, a Shi'ite spiritual leader.
Oct. 23, 2002 -- Chechen rebels seized a Moscow theater and took about 800 people hostage. 120 of whom were killed.
Oct. 12, 2002 -- A series of bombings targeting foreign tourists on the Indonesian island of Bali killed 202 people.
August 1998 -- A bomb blast, aimed at the U.S. embassy in a busy commercial area in the Kenyan capital, claimed more than 250 lives and injured nearly 5,000 people on Aug. 7, 1998.