[oceliker]

I'm sure you thought about this deeply already, but FWIW I think 5 years is a little bit too long. You're basically looking for "timeless" articles, but there are not that many of those on the web; much less so if you exclude the last 5 years. Also, this necessarily eliminates anything related to new scientific and technical advances, which I think are the coolest discussions in HN in general.

[m52go]

I will admit the 5 year timeframe is a bit arbitrary and may need to be adjusted.

With that said, the goal is positively not to replicate HN with discussions of cutting-edge technology and science.

Even in those topics, I think there's plenty to cover in those fields as it related to nostalgia, little-known but significant advancements, unsung heroes, etc.