1960 - A temperature of −88°C (−127°F) is measured in Vostok, Antarctica — a world-record low.
1963 - The 200-metre freestyle is swum in less than 2 minutes for the first time by Don Schollander (1:58).
1967 - Led by Abbie Hoffman, a group of hippies temporarily disrupt trading at the NYSE by throwing dollar bills from the viewing gallery, causing a cease in trading as the brokers scramble to grab them up.
1968 - France explodes its first hydrogen bomb, thus becoming the world's fifth nuclear power.