Examine the origin, history and impact of the 1882 law that made it illegal for Chinese workers to come to America and for Chinese nationals already here ever to become U.S. citizens. The first in a long line of acts targeting the Chinese for exclusion, it remained in force for more than 60 years.

The completion of the transcontinental railroad in May 1869 is usually told as a story of national triumph and a key moment for American Manifest Destiny. The railroad made it possible to cross the country in a matter of days instead of months, paved the way for new settlers to come out West, and helped speed America's entry onto the world stage as a modern nation that spanned a full continent. It also created vast wealth for its four owners, including...