From a language age point of view, FORTRAN and COBOL are closing in on a quarter of a century. I don't know the odds of COBOL surviving the full century but I'm

From a language age point of view, FORTRAN and COBOL are closing in on a quarter of a century. I don't know the odds of COBOL surviving the full century but I'm very confident that large chunks of FORTRAN will still be in widespread use when it hits the century mark. The ease of which code can be wrapped and reused, from FORTRAN into C or C++ libraries, which are then wrapped or reused in almost any other language, has led to FORTRAN being buried at the base of many existing libraries where FORTRAN was originally the only language for such tasks.