Dec. 6 (UPI) -- On this date in history:
In 1768, Encyclopedia Britannica was first published.
In 1865, the 13th Amendment to the U.S. Constitution was ratified, abolishing slavery in the United States.
In 1877, The Washington Post published its first edition.
In 1907, in West Virginia's Marion County, an explosion in a network of mines owned by the Fairmont Coal Co. in Monongah killed 361 coal miners. It was the worst mining disaster in U.S. history.
In 1922, the Irish Free State, forerunner of the modern Republic of Ireland, was officially proclaimed.
In 1933, following the repeal of Prohibition, Americans crowded into liquor stores, bars and cafes to buy their first legal alcoholic beverages in 13 years.
In 1941, U.S. President Franklin D. Roosevelt sent a message to Japanese Emperor Hirohito expressing hope that gathering war clouds would be dispelled. Japan attacked Pearl Harbor the next day.
In 1975, the U.S. Senate authorized a $2.3 billion emergency loan to save New York City from bankruptcy.
In 1997, the Kamchatka Peninsula in Russia's Far East was hit by a fierce earthquake, measuring 8.5 to 9 in magnitude, but there were no reported deaths in the sparsely populated region.
In 2005, an Iranian military aircraft hit a 10-story residential building in Tehran and exploded shortly after takeoff, killing at least 128 people.
In 2010, Julian Assange, the Australian-born co-founder of WikiLeaks, the whistle-blower website that published thousands of secret U.S. government documents, was arrested in Britain on a Swedish warrant accusing him of sexual assault.