Did ancient Filipinos really invent the yo-yo? - FlipScience - Top Philippine science news and features for the inquisitive Filipino.
Hispanic Heritage Association - Did you know? Inventor from Philippines 🇵🇠SabÃas Que? Inventor de Filipinas. Pedro Edralin Flores (26 April 1896 – 3 January 1964) was a Filipino businessman and yo-yo
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Pedro Edralin Flores (1896-1964) - Find a Grave Memorial
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Pedro and the Yo-yo: Man and Myth — Positively Filipino | Online Magazine for Filipinos in the Diaspora