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Tyler Durden's comment does a great job with the first two parts of your question. This answer addresses when playgrounds began to look like the things we have today. Short Answer: The modern American playground was championed by progressives in the 1880s-1890s; the most common playground equipment was all invented by the 1920s; and New Deal money made ...


Forever? Every civilization makes it a priority to know who is who and keep out the unwanted people. In the Book of Judges an incident is described from 3000 years ago whereby a shibboleth is used to identify aliens. According to the Wikipedia entry on identity documents, the passports of King Henry V (15th century) were the first such documents, but various ...

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