May 22 - The Innovation department store in the centre of Brussels (Belgium) burns down. It is the most devastating fire in Belgian history, which results in 323 dead and missing and 150 wounded.
June 2 - Protests in West Berlin against the arrival of the Shah of Iran turn into fights, during which young Benno Ohnesorg is killed by a police officer. His death results in the founding of the terrorist group Movement 2 June .
June 12 - Venera program: Venera 4 is launched (it will become the first space probe to enter another planet's atmosphere and successfully return data).