I noticed today searching that the date search no longer seems to work right. There are some terms that only appeared since 2020 and up until my recent attempts those terms produced no results on DDG when date constrained but now produce terms in articles clearly after that date. I don’t know if this is some personalisation nonsense or always pulling but results if the constraints don’t match or what but its seriously problematic and means I can’t trust the date constraints anymore.
Universities have been running Linux since the very early versions. Slackware was pretty common back in the 90s and 2000s and universities had labs full of them not least because there weren’t really laptops so they had to have enough machines for all the students. Universities have been heavily involved in the development of unix from its inception and a lot of the tools were initially written by university professors.