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• 1846 – Triton, the largest moon of the planet Neptune, is discovered by English astronomer William Lassell.

• 1897 – German Chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).

• 1906 – Birth Day Of R. K. Narayan, Indian author (Malgudy Days and The Guides are His Books.) (Death On 2001)

• 1938 – The Munich Agreement cedes the Sudetenland to Nazi Germany.

• 1957 – The Windscale fire in Cumbria, U.K. is the world's first major nuclear accident.

• 1963 – The Partial Nuclear Test Ban Treaty comes into effect.

• 1964 – The opening ceremony of the 1964 Summer Olympics in Tokyo, Japan, is broadcast live in the first Olympic telecast relayed by geostationary satellite.

• 1970 – Fiji becomes independent.

• 1975 – Papua New Guinea joins the United Nations.

• 2000 – Death Day Of Sirimavo Bandaranaike, Sri Lankan lawyer, Prime Minister  and politician, First Woman Prime Minister (b. 1916)