Barbara Liskov is one of the most influential computer scientists who even one a Turing award. So, I'd immediately think it was some historical or current work

Barbara Liskov is one of the most influential computer scientists who even one a Turing award. So, I'd immediately think it was some historical or current work of Barbara Liskov if all I did was study CompSci. I'd already seen CLU as one of C++'s influences, though. The key contributions section should hint at its significance: https://en.wikipedia.org/wiki/CLU_(programming_language) https://en.wikipedia.org/wiki/CLU_(programming_language) Her Wikipedia page also has a nice summary: https://en.wikipedia.org/wiki/Barbara_Liskov https://en.wikipedia.org/wiki/Barbara_Liskov