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Home Juniors Toddler Simple Inventions that changed the world
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Simple Inventions that changed the world
by Om Books Editorial Team
4.8
4.8 out of 5
Creators
AuthorOm Books Editorial Team
PublisherOm Books International
SynopsisFor which monarch was the first handmade stapling machine invented? When was the safety pin created? What were the toothbrushes in ancient times made of? What were pencils first used for?This book is filled with facts about inventions that seem simple, but paved the way for other bigger discoveries.