Did you know that a Scot landed in America a century before Columbus? Or that Scotland had electric lighting 70 years before Edison patented the light bulb? Probably not, because Scotland has two histories. The image of the Scots as whisky-drinking, tartan-sporting, tight-fisted kilt wearers is famous throughout the world. The image is manufactured. Yet Scotland's reputation for producing inventors, thinkers, and explorers--people who have changed...