Fortran is a long-lived programming language for scientific computing
Fortran is a general-purpose, procedural, imperative programming language that is especially used for numeric computation and scientific computing.
It has a long history, and is still evolving: the first language proposal was put together by J. W. Bachus in 1953, the first international standard was approved in 1966, and the latest major standard revision (with new features) was written in 2008.
Fortran is widely used in the scientific computing community, and accounts for an important part of numerical codes run in supercomputing facilities.