A: Manchester, England, United Kingdom
In 1952 British computer scientist Alick Glennie developed the first autocode, or programming language, for the Manchester Mark 1 computer at the University of Manchester. This was the first compiled programming language.
Knuth, Donald E.; Pardo, Luis Trabb. "Early development of programming languages". Encyclopedia of Computer Science and Technology (Marcel Dekker) 7: 419–493.