Readers may know the basic facts about the creation of the first transcontinental railroad, but the full story behind the push to connect the United States by rail is much more than the names and dates taught in history classes. Readers discover the exciting, important details, including the contributions of immigrants, as they encounter engaging main text, comprehensive sidebars, and historical images that include carefully chosen primary sources. These text features come together to give readers an in-depth look at the first successful attempt to connect the United States through transportation.