My first thought as well, but in 1969 Forth was still busy being born. Based on the notes here[1], many of the core concepts of a modern Forth like defining wor

My first thought as well, but in 1969 Forth was still busy being born. Based on the notes here[1], many of the core concepts of a modern Forth like defining words and the structure of the dictionary were being actively hammered out. [1] http://www.colorforth.com/HOPL.html http://www.colorforth.com/HOPL.html