Today in History: December 6, 13th Amendment ratified, abolishing slavery

Today is Saturday, Dec. 6, the 340th day of 2025. There are 25 days left in the year.

Today in history:

On Dec. 6, 1865, the 13th Amendment to the U.S. Constitution, abolishing slavery, was ratified as Georgia became the 27th state to endorse it.

Also on this date:

In 1907, at least 361 men and boys died in a coal mine explosion in Monongah, West Virginia; it was the worst mining disaster in U.S. history.

In 1917, more than 1,700 people were killed when an explosives-laden French cargo ship, the Mont Blanc, collided with the Norwegian merchant vessel SS Imo in the harbor in Halifax, Nova Scotia, setting off a blast that devastated the Canadian city.

In 1923, a presidential address was broadcast nationally on radio for the first time as Calvin Coolidge spoke to a joint session of Congress.

In 1969, a free concert by The Rolling Stones at the Altamont Speedway in Alameda County, California, was marred by the deaths of four people, including one who was stabbed by a member of the Hells Angels Motorcycle Club that was hired to provide concert security.

In 1973, Republican House Minority Leader Gerald R. Ford was sworn in as vice president after he was selected by President Richard Nixon to replace Spiro T. Agnew, who resigned amid an extortion and tax evasion scandal.

In 1998, in Venezuela, former Lt. Col. Hugo Chavez, who had staged a bloody coup attempt against the government six years earlier, was elected president.

In 2017, President Donald Trump officially recognized Jerusalem as Israel's capital, announcing plans to move the U.S. Embassy there from Tel Aviv.

In 2021, ousted Myanmar leader Aung San Suu Kyi was sentenced to four years (later reduced to two) for inciting public unrest and breaching COVID-19 protocols; she is currently serving a 27-year prison sentence after a series of cases brought by the military that had seized power from her elected government.