Dec. 6, 2022, midnight

(ABC News) Today in History Today is Tuesday, Dec. 6, the 340th day of 2022. There are 25 days left in the year. Today’s Highlight 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. On this date: In 1790, Congress moved to Philadelphia from New York. In 1907, the worst mining disaster in U.S. history occurred as 362 men and boys died in a coal mine explosion in Monongah, West Virginia. In 1917, some 2,000 people were killed when an explosives-laden French cargo ship, the Mont Blanc, collided with the Norwegian vessel Imo at the harbor in Halifax, Nova Scotia, setting off a blast that devastated the Canadian city. Finland declared its independence from Russia. In 1922, the Anglo-Irish Treaty, which established the Irish Free State, came into force one year to the day after it was signed in London. In 1923, a presidential address was broadcast on radio for the first time as...

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