1788: US Constitution comes into effect when New Hampshire is the 9th state to ratify it

1854: First Victoria Cross won during the bombardment of Bomarsund in the Åland Islands during the Crimean War

1948: Columbia Records unveils the 33-1/3 rpm LP phonograph record, invented by Peter Carl Goldmark, allowing up to 20 minutes per side (available in 10 and 12-inch diameters) at the Waldorf-Astoria Hotel, NYC; over the next decade, its popularity and profitability push the 78 rpm record out of production [1]

1948: Lord Mountbatten resigns as Governor General of India (formerly the last Viceroy)

1990: 7.7 Manjil-Rudbar Earthquake with hundreds of aftershocks hits Iran, killing between 35,000 and 50,000 people

1993: English mathematician Andrew Wiles proves the last theorem of French mathematician Pierre de Fermat after 356 years, solving the world’s most difficult math problem

Source: Onthisday.com