In Jan. 14, 1784, the United States ratified the Treaty of Paris ending the Revolutionary War; Britain followed suit in April 1784.
In 1914, Ford Motor Co. greatly improved its assembly-line operation by employing an endless chain to pull each chassis along at its Highland Park, Michigan, plant.
In 1943, President Franklin D. Roosevelt, British Prime Minister Winston Churchill and French General Charles de Gaulle opened a wartime conference in Casablanca.
In 1952, NBC’s “Today” show premiered, with Dave Garroway as the host, or “communicator.”
In 1954, Marilyn Monroe and Joe DiMaggio were married at San Francisco City Hall. (The marriage lasted about nine months.)
In 1963, George C. Wallace was sworn in as governor of Alabama with the pledge, “Segregation forever!” — a view Wallace later repudiated.
In 1964, former first lady Jacqueline Kennedy, in a brief televised address, thanked Americans for their condolences and messages of support following the assassination of her husband, President John F. Kennedy, nearly two months earlier.
In 1970, Diana Ross and the Supremes performed their last concert together, at the Frontier Hotel in Las Vegas.
In 1975, the House Internal Security Committee (formerly the House Un-American Activities Committee) was disbanded.
In 1994, President Bill Clinton and Russian President Boris Yeltsin signed an accord to stop aiming missiles at any nation; the leaders joined Ukrainian President Leonid Kravchuk in signing an accord to dismantle the nuclear arsenal of Ukraine.
In 2010, President Barack Obama and the U.S. moved to take charge in earthquake-ravaged Haiti, dispatching thousands of troops along with tons of aid.