Traditional playgrounds are known for standard equipment such as metal slides, basic swing sets, and merry-go-rounds. Today, they employ advanced designs and ...
Add Yahoo as a preferred source to see more of our stories on Google. The earliest swing sets, which date all the way back to the fifth century B.C., were nothing more than slabs of wood tied to a ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. MERRIAM ...
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