On this day in 1900, Hawaii became a United States territory.
On this day in 1940, during World War II, Paris fell under German occupation, and Allied forces retreated.
On this day in 1949, Albert II, a rhesus monkey, rode a V2 rocket to an altitude of 134 km, thereby becoming the first monkey in space.
On this day in 1967, China tested its first hydrogen bomb.
And on this day in 2002, Near-Earth asteroid 2002 MN missed the Earth by 121,000 km, about one-third of the distance between the Earth and the Moon.