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…