1914 - Austria-Hungary declared war on Russia, and Serbia declared war on Germany in World War I.
1926 - American Gertrude Ederle became the first woman to swim the English Channel, taking just over 14 hours.
1932 - The first annual film festival began in Venice, featuring Italy, France, Germany, Britain, the United States, and the Soviet Union.
1945 - The United States Air Force dropped the first atomic bomb on Hiroshima, Japan, carried by the "B-29 Enola Gay," resulting in the deaths of at least 117,000 people.
1952 - A plane crash caused a fatal fire on the aircraft carrier "USS Boxer's."
1962 - Jamaica gained independence after 300 years of British rule.
1978 - Pope Paul VI, who succeeded John XXIII in 1963, died. He was conservative and reaffirmed the Roman Catholic Church's ban on artificial birth control in his encyclical "Humanae Vitae."
1996 - American scientists reported finding evidence of ancient life on Mars in a meteorite discovered in Antarctica.
2005 - Former British Foreign Secretary Robin Cook, who resigned from the government due to the 2003 invasion of Iraq, died at the age of 59.
2012 - NASA's "Curiosity" rover landed on the surface of Mars.
2016 - Players participated in the world’s first "Pokemon Go" competition in Hong Kong.
