22 July 1946. The headquarters of the British Army in Palestine is located in the luxurious King David Hotel. Members of the Irgun, the Jewish resistance movement, smuggle milk churns packed with explosives into the hotel and hide them in the basement.

30 September 1956. For over a century Algeria has been a colony of France and the Algerians are fed up with it. A young Algerian woman visits a bar in the European quarter of Algiers. She orders ice cream, plants a bomb underneath her chair, and leaves the establishment.

5 September 1972. For the first time ever, the Olympic Games are broadcast live on television. Early in the morning of September 5, eight Palestinians, members of the Black September movement, attack the apartments of the Israeli delegation and kill two athletes.

2 August 1980. A suitcase is left in the lobby of Bologna Central Station and explodes not long after. The gigantic explosion rips the station building apart and a train waiting to leave for Chiasso is torn to shreds. 85 people are killed and 200 are injured.

12 October 2000. The American naval vessel USS Cole docks in Aden, Yemen to refuel. Two men approach in a small boat. They wave to the crew before ramming the ship at full speed. The resulting explosion kills seventeen sailors.

22 July 2011. Anders Breivik detonates a bomb in Oslo’s government quarter. In the midst of the ensuing chaos, he drives to the island of Utøya, where youth members of the Labour party have just started their annual summer camp. When he arrives, he opens fire on the young adults.