1971 (modern edition) / Family card game / 2-10 players / USA
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This canonical staple didn't happen to be in our roster when I was growing up, but I don't feel I missed out. We've only got it now because they were going for £1.99 and I thought it might be a more engaging way to teach colours and numbers to a toddler than pointing at books.
Unfortunately, the plain cards turned out to be too boring for that, and obviously too boring to consider actually playing, so their main roles are to be improv bookmarks and occassionally-glimpsed debris until we have a big clear-out in ten years.