Shelley Lowe, a former high school Latin teacher, opened Monkey and Dog Book Shop in a 120-sq.-ft. space inside a friend’s gourmet products shop in Fort Worth, Tex., in 2013 so that she could sell ...

On October 23, 1923, Hinton—a patent attorney—was awarded the first of a series of U.S. patents for his “jungle gym,” and the monkey bars were born. These days, hardly anyone is aware of ...