WikiLeaks published the first US diplomatic cable leak provided by Chelsea Manning.
Source
American astronomer Clyde Tombaugh discovered Pluto.
Actor Yul Brynner starred in an anti-smoking ad campaign while dying of smoking-related lung cancer.
The Republic of Gambia gained its independence from the United Kingdom.
The first Ironman Triathlon was held in Kona, Hawaii, USA.
Henry VIII, known then as Henry Tudor, established the title 'The Prince of Wales.'
