Inventions that changed the world by hardly trying
What do Post-it Notes® and Velcro have in common? They are inventions that have changed the world by hardly trying, and their history and that of others can be found in this entertaining new daily calendar. From the book, Why Didn’t I think of That — Inventions That Changed the World by Hardly Trying, by Tony Rubino, comes the content for this fascinating and humorous calendar.
Size: 6″ x 5″