The World According to Greg is a blend of genealogy, history, current events, politics, religion, education, and, well, you name it. And trains. There are several parts to this project. First, there is the raw data. Even more exciting — or touching, or gripping, or sad, perhaps — are the stories and things that bring us together as a family, that try to explain the meaning of our lives, or, are just plain funny. Or touching. Or gripping. Or sad.