This book tells about 20 boys who later became famous commanders, statesmen, scientists, researchers and figures of sports and arts, whose names will forever remain in the history of mankind. Who was the first to see our planet from space? Who received as many as 26 Oscar statuettes for their services in the field of animation? Which athlete won four gold medals at once at the 1936 Olympics? The encyclopedia will answer all these and many other questions about the extraordinary boys who changed the world.