Read the passage from Sugar Changed the World.The diamond and the house: two family treasures, two parts of the story of sugar. We realized that our two family stories—Marina's great-grandparents, brought to Guyana to replace slaves, and Marc's aunt's grandfather, helping to refine an alternative to that same sugar—were just the beginning of a much larger story about a remarkable substance. It is a story of the movement of millions of people, of fortunes made and lost, of brutality and delight—all because of tiny crystals stirred into our coffee, twirled on top of a cake. Sugar, we began to see, changed the world.