I think it's really important to remember that a lot of these papers are relevant and important for modern systems.

"The Morning Paper" did a series in September on a bunch of older papers from the 70s about system design. https://blog.acolyer.org/2016/09/page/3/

As an example, https://blog.acolyer.org/2016/09/05/on-the-criteria-to-be-us... is just as relevant now as it was then. It shocks me over and over to find papers like that one; we as an industry seem to miss and forget the lessons that our forebearers learned.

I attended Barbara Liskov's talk at the Heidelberg Laureate Forum and the list was not meant to be for 1975-2015. It was a more personal experience (including some history) about Liskov and her career.

If we're being picky I'd rather see important things that is relevant 2016-66.