Duncan Toys Company | The Original, World's #1 Yo-Yos
Museum of Yo-Yo History
Yoyo Name Meaning, Origin, History, And Popularity
Yo-yo - Wikipedia
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:max_bytes(150000):strip_icc()/GettyImages-80624034-5b478d61c9e77c0037eff6b8.jpg "Who Invented the Yo-Yo?")
Who Invented the Yo-Yo?
National Yo-Yo Day: June 6 | Smithsonian Institution
Museum of Yo-Yo History
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Doc Lucky's History of the Yo-Yo | Yo-Yo's
When Were Yoyos First Invented? – Yoyoing Blog
Calaméo - The history of yo-yo
Pedro and the Yo-yo: Man and Myth — Positively Filipino | Online Magazine for Filipinos in the Diaspora
Yo-yo - Wikipedia
Yo-yo - Wikipedia
