On May 9, 2002 an explosion hit the main thoroughfare of Kaspiysk in the southern republic of Dagestan, killing 44 people and wounding 133
On May 8, 2018 the Colombian terrorist group ELN killed 20 miners in the Venezuelan province of Bolivar.
On May 7, 2016 ISIS terrorists launched several mortar rounds containing chlorine gas at the village of Bashir killing three and wounding hundreds
On May 6, 2007 a clash broke out at a United Nations-run school in the Gaza Strip in which one person was killed and six wounded.
On May 5, 1881 Fenians exploded a bomb at the Chester Barracks in Chester, England: there were no casualties
On May 4, 2005 a suicide bomber pretending to be a job seeker blew himself up outside a police recruiting center in Erbil killing at least 60 Kurds
Beginning on this day in 2002 a 21-year old college student planted a series of pipe bombs in rural mailboxes across five midwestern US states.
On May 2, 2002 a cylinder bomb fell on a church where civilians had taken refuge amid clashes between the FARC and the Colombian army
On May 1, 1981 Vienna city Councillor Heinz Nittel, co-founder of the Austrian Jewish Welcome Service, was assassinated
On April 30, 1980 six gunmen seized the Iranian Embassy in London, taking 21 hostages, two of whom they killed