With this set of 24 KIDS DISCOVER magazines experience the hardships and appreciate the courage of the millions of immigrants who have entered the U.S. since 1820. Young historians learn about: How long humans have been migrating and what challenges did they face; Why do immigrants come to America; What life was like for new arrivals; Immigration patterns starting in 1820; Immigration restrictions, illegal aliens and how to become a U.S. citizen and more. (24 KIDS DISCOVER magazines/teacher's guides).