By August Mohr from the January 1985 issue of Unix Review magazine This is, so to speak, a history of how UNIX evolved as a product; not the “official” history of who was responsible for what features, and what year which milestones were crossed, but the “political” history of how decision were made and what motivated the people involved. Most of the readers of this mazagine are familiar with the system itself, so I don’t want to go into great detail about how the system got to be what it is internally, but rather how it how it got to be at all.