1/6 "Sesame Street" muppets Elmo and Grover stand on the red carpet at the Sesame Workshop's 13th Annual Benefit Gala at Cipriani 42nd Street in New York City on May 27, 2015. The PBS series debuted November 10, 1969. File Photo by John Angelillo/UPI | License Photo Nov. 10 (UPI) -- On this date in history: In 1775, the United States Marine Corps, then known as the Continental Marines, was formed by order of the Second Continental Congress. Advertisement In 1871, journalist Henry Stanley found Scottish missionary David Livingstone in a small African village. His famous comment: "Dr. Livingstone, I...