This chapter considers events that happened during June 1956 in the following five domains: science and technology; politics, society and the economy; entertainment, arts, and culture; celebrity and famous names; and sport. Focusing here purely on developments in science and technology, we consider: the discovery of the neutrino; the first scientific research meeting about artificial intelligence; Harman’s proposal of the free radical theory of aging; the retirement of the geologist Arthur Holmes; the largest earthquake to hit Greece in the twentieth century; and a new speed record for the Bell X-2 aircraft.