-Sep 2001 NYC: most deadly in history w/2,977 killed.
-March 2004 Madrid: train bombings killed 193 & injured nearly 2,000.
-Aug 2007 Mosul, Iraq: car bombings targeting Yazidis killed 500
-Dec 2008 Congo: Ugandan rebel cult group led by Joseph Kony killed 620 people celebrating Christmas
-July 2014 Tikrit, Iraq: ISIS killed 1500 Shia & non-Muslim cadets
-July 2016 Baghdad: ISIS killed 340 in Shia district
-Oct 2017 Mogadishu, Somalia: bombing killed 600 by al-Shabab member
-July 2018 Sweida, Syria: 258 known to have been killed in bombings & shootings by ISIS
-April 2019 Colombo, Sri Lanka: Nearly 300 killed in bombings on churches & hotels
Correction: The 2014 attack on Camp Speicher in Tikrit, Iraq happened in June, not July.