Earlier quoted context omitted.
It just specifically lists how children could play with those dolls, not all articles must have "newly discovered insights". For example, I didn't know they had such precisely made and articulated dolls in those times.
I always wonder what kids could play with in other time periods. I guess that woodwork always was pretty excellent, so there could be all sorts of stuff that is lost by now.
Even now they seem to stay interested in their paper boats/air planes much longer than the latest paw patrol truck.