June 6 is National Yo-Yo Day, celebrated each year since 1990. Did you know that yo-yo’s have been around for about 2,000 years, first played with in ancient Greece? Modern yo-yo’s were popularized in the Philippines, with the word “yo-yo” first appearing in a Filipino dictionary in 1860. They became popular in the 1930s, with the best known yo-yo’s produced by the Duncan Toys Company (1929-) in Middlefield, Ohio.
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