`info` also contains a lot of historical notes, i.e. $ info Groff | awk '$2 == "History"{f = 4};f && f--' RS= ORS='\n\n' 1.2 History ===========

`info` also contains a lot of historical notes, i.e. $ info Groff | awk '$2 == "History"{f = 4};f && f--' RS= ORS='\n\n' 1.2 History =========== 'troff' can trace its origins back to a formatting program called 'RUNOFF', written by Jerry Saltzer, which ran on the CTSS (_Compatible Time Sharing System_, a project of MIT, the Massachusetts Institute of Technology) in the mid-sixties.(1) (*note History-Footnote-1::) The name came from the use of the phrase "run off a document", meaning to print it out. Bob Morris ported it to the 635 architecture and called the program 'roff' (an abbreviation of 'runoff'). It was rewritten as 'rf' for the PDP-7 (before having UNIX), and at the same time (1969), Doug McIllroy rewrote an extended and simplified version of 'roff' in the BCPL programming language. In 1971, the UNIX developers wanted to get a PDP-11, and to justify the cost, proposed the development of a document formatting system for the AT&T patents division. This first formatting program was a reimplementation of McIllroy's 'roff', written by J. F. Ossanna.