- 612 BC Killing of Sinsharishkun, King of Assyrian Empire. Destruction of Nineveh.
- 610 In Islam, the traditional date of the Laylat al-Qadr, when Muhammad began to receive the Qur'an
- 1497 John Cabot tells King Henry VII of his trip to "Asia"
- 1675 King Charles II and John Flamsteed lay the foundation stone of the Royal Observatory in Greenwich, London
- 1846 US Act of Congress passes establishing the Smithsonian Institution, now world's largest museum and research complex
Leo Daft opens America's 1st commercially operated electric streetcar in Baltimore
On August 10, 1885
Louvre palace officially opens in Paris as The Museum Central des Arts
On August 10, 1793
- 1848 Inventor Samuel Morse (57) weds Sarah Elizabeth Griswold in Utica, New York
- 1912 British literary figure (author of "To the Lighthouse") Virginia Woolf (30) weds political theorist Leonard Woolf (31)
- 1933 Actress Hedy Lamarr (19) weds Hirtenberger Patronen-Fabrik chairman Friedrich Mandl (33)
- 1941 Actor Jackie Coogan (26) weds actress Flower Parry in Gardnerville, Nevada
- 1946 Author and founder of the Scientology cult L. Ron Hubbard (35) weds Sara Northrup Hollister