First thermonuclear bomb tested in the US, Delhi becomes a Union territory, here's what happened on this day in history
Vaccine for diphtheria announced by Dr Roux of Paris
(Photograph:WION)
First thermonuclear bomb is tested by the United States
United Airlines Flight 629 blows up over Colorado, 44 die
Delhi becomes a Union territory
Scientists detect evidence of light from the universe's first stars
