Three generations of English merchant adventurers-not the Pilgrims, as we have so long believed-were the earliest founders of America. Profit-not piety-was their primary motive. Some seventy years before the Mayflower sailed, a small group of English merchants formed "The Mysterie, Company, and Fellowship of Merchant Adventurers for the Discovery of Regions, Dominions, Islands, and Places Unknown," the world's first joint-stock company...