Programming languages, higher level than assembler or machine language, have existed for about 60 years: FORTRAN (1957), LISP (1958), Algol 60 (1959-1960). Mode

Programming languages, higher level than assembler or machine language, have existed for about 60 years: FORTRAN (1957), LISP (1958), Algol 60 (1959-1960). Modern era programming languages like Ada (1983) and Rust naturally make use of the lessons learned from the early languages. The idea of scope of variables is found in LISP and Algol from well over half a century ago.