In 1884, Army engineers completed construction of the Washington Monument by setting an aluminum capstone atop the obelisk.

Today is Friday, Dec. 6, the 340th day of 2013. There are 25 days left in the year.

Today's Highlight in History:

On Dec. 6, 1957, America's first attempt at putting a satellite into orbit failed as Vanguard TV3 rose only about 4 feet off a Cape Canaveral launch pad before crashing back down and exploding.

On this date:

In 1790, Congress moved to Philadelphia from New York.

▪In 1917, some 2,000 people died when an explosives-laden French cargo ship collided with a Norwegian vessel at the harbor in Halifax, Nova Scotia, setting off a blast that devastated the city.

In 1922, the Irish Free State came into being under terms of the Anglo-Irish Treaty.

In 1947, Everglades National Park in Florida was dedicated by President Harry S. Truman.

In 1969, a free concert by The Rolling Stones at the Altamont Speedway in Alameda County, Calif., was marred by the deaths of four people, including one who was stabbed by a Hell's Angel.

In 1973, House minority leader Gerald R. Ford was sworn in as vice president, succeeding Spiro T. Agnew.

In 1989, 14 women were shot to death at the University of Montreal's school of engineering by a man who then took his own life.

Five years ago: President-elect Barack Obama said in a Saturday radio and Internet address that he'd asked his economic team for a recovery plan that would save or create more than 2 million jobs.

One year ago: Egyptian President Mohammed Morsi remained defiant after a night of clashes involving thousands of his supporters and opponents outside his palace in Cairo that left six people dead and hundreds injured.

Today's Birthdays: Actress JoBeth Williams is 65. Actor Tom Hulce is 60. Actor Kin Shriner is 60. Actor Wil Shriner is 60. Actor Miles Chapin is 59. Rock musician Rick Buckler (The Jam) is 58. Comedian Steven Wright is 58. Country singer Bill Lloyd is 58. Singer Tish Hinojosa is 58. Rock musician Peter Buck (R.E.M.) is 57. Rock musician David Lovering (Pixies) is 52. Actress Janine Turner is 51. Rock musician Ben Watt (Everything But The Girl) is 51. Writer-director Craig Brewer is 42. Actress Colleen Haskell is 37. Actress Lindsay Price is 37. Actress Ashley Madekwe is 32. Christian rock musician Jacob Chesnut (Rush of Fools) is 24.