I recently attended my great aunt’s 90th birthday. She had a giant card an on the back was list of notable events and most popular song and that sort of thing from the year she was born. I’ve seen those before (always targeted at 70+ years old, it seems).
While I can see how that’s interesting for other guests - how much the world has changed and so forth, I wonder if it would actually be of any interest at all to the recipient. After all, they aren’t going to remember those things and it seems unlikely to evoke an emotional response even as mild as nostalgia. I think a card that had the popular toys when a person was 5 and the popular music when they were 15 - or even just notable events from their lifetime would be better. I admit to being biased in favor the years 5-20 or 5-25 because you don’t have memories earlier and the more recent stuff is something everyone else there remembers, too, so things you might hear more often. Plus, honestly, most people seem to get nostalgic over or like to share about their childhood through very early adulthood more than later years in my experience.