Loads of quirky, cool, and astonishing facts about America's presidents, including presidential firsts, White House trivia, and presidential hobbies. Did you know that rats are ticklish? Or that one-fourth of the bones in your body are in your feet? Or that President Thomas Jefferson introduced french fries to the United States? From creepy crawlies to ancient inventions, pumpkin-boat racing to the smallest bone in your body, our Weird-but-True Facts...