What Is John Glenn Known For?
What Is John Glenn Known For? John Glenn, in full John Herschel Glenn, Jr., also called John H. Glenn, Jr., (born July 18, 1921, Cambridge, Ohio, U.S.—died December 8, 2016, Columbus, Ohio), the first U.S. astronaut to orbit Earth, completing three orbits in 1962. What did John Glenn accomplish? He was one of the Mercury