150 years ago, the First Transcontinental Railroad was completed, revolutionizing travel in the U.S. by linking the east and west coasts with 1,912 miles of track. Built largely by Chinese laborers, it brought mobility to millions of Americans. But according to Nancy Yao Maasbach, President of the Museum of Chinese in America, it is also filled with untold stories of the early Chinese settlers in the U.S. who gave their talent and lives to build the major innovation of its time.