Lazarus Long is a fictional character featured in a number of science fiction novels by American writer Robert A. Heinlein. Born in 1912 in the third generation of a selective breeding experiment run by the Ira Howard Foundation, Lazarus becomes unusually long-lived, living well over two thousand years with the aid of occasional rejuvenation treatments. Heinlein "patterned" Long on science fiction writer Edward E. Smith, mixed with Jack Williamson's fictional Giles Habibula.