On This Day January 14
1970 – Diana Ross makes her final appearance with The Supremes at the Frontier Hotel in Las Vegas. During the show, Diana introduces her replacement, Jean Terrell, who goes on to lead the group to seven more Top 40 hits.
1943 – Franklin D. Roosevelt becomes the first U.S. president to travel on official business by airplane. Crossing the Atlantic aboard a Boeing 314 flying boat named the Dixie Clipper, Roosevelt heads to a World War II strategy meeting with European leaders Winston Churchill and Charles DeGaulle at Casablanca in North Africa.