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Richard Scarry's Best Word Book Ever is a best-selling children's book from the 60s that helps children broaden their vocabulary and practice counting. It was re-edited to be more inclusive in 1991, but people are just now realizing how forward-thinking those edits wereAlan Taylor, a senior photo editor at The Atlantic, was reading the '91 version to his kids when he noticed that it was different from the 1963 version he was given as a toddler.

1963 version and 1991 version.
1963 version and 1991 version.
Sources: Flickr/Alan Taylor