Event:
Leonid Mossejev becomes European marathon champ (2:11:57.5)
More Notable Events on September 3:
1984 South Africa adopts constitution
1978 Pope John Paul I officially installed as 264th supreme pontiff
1976 Viking 2 soft lands on Mars and returns photos
1971 John Lennon leaves U.K. for New York City, never to return
1964 U.S. attorney general Robert Kennedy resigns
