NYC Educator: Yo!
Pedro Flores (1896-1963) - Inclusity
I Invented the Yo-Yo! by LaiGubalane on DeviantArt
Happy Yo-Yo Day! Yes, Greeks Invented This Too
Yo-yo - Wikipedia
Did ancient Filipinos really invent the yo-yo? - FlipScience - Top Philippine science news and features for the inquisitive Filipino.
Oldest Yo-Yo Dates Back To 400-500 B.C - Ancient Pages
Pedro and the Yo-yo: Man and Myth — Positively Filipino | Online Magazine for Filipinos in the Diaspora
Link #87: Ancient Filipinos Used the Yoyo As a Weapon! | Always Learning!
When Were Yoyos First Invented? – Yoyoing Blog
Flores Yo-Yo Invented by Pedro Flores, Yo-yo's have been very popular since it was made in the 1920's. The true meaning of the name "yo-yo" m… | Yoyo, Yo-yos, Yo-yo
Throwing ourselves into Yo-Yo Heritage Month | National Museum of American History
How do yo-yos work? | Who invented yo-yos?
Out of this World: A Brief History of the Yo-Yo - The Strong National Museum of Play
Chinese Culture & the Invention of the Yo-Yo - Synonym
Who invented yo yo? - Who Invented?
Did ancient Filipinos really invent the yo-yo? - FlipScience - Top Philippine science news and features for the inquisitive Filipino.
On This Day June 6: National Yoyo Day — The Greeks Invented This Too! - The Pappas Post
Yo-yo - Ten Random Facts
Smithsonian Insider – Duncan Genuine Yo-Yo, 1930s | Smithsonian Insider
Yo-Yo - History's Best Toys: All-TIME 100 Greatest Toys - TIME
