World history is a history of immigrants and immigration, which is the act of traveling to a country one was not born in and living there, making a living, creating a whole new life. Ours is a world filled with a wide variety of people and pursuits, but immigration is complicated by country borders and governments that don't want a flood of immigrants in their country. Immigration challenges people to consider racism, nationalism, and just who is a citizen. With this book, readers explore the laws that have shaped our journeys to and from our countries.